finite math 8.1

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QUESTION 1

Suppose a probability distribution of a random variable X is represented by the accompanying histogram. Shade that part of the histogram whose area gives the probability .


a.b.c.d.e.

1 points   

QUESTION 2

Give the range of values that the random variable X may assume and classify the random variable as finite discrete, infinite discrete, or continuous.

X = The number of times an accountant takes the CPA examination before passing
a.0 ≤ x < 24; continuous

b.0 ≤ x < ∞; continuous

c.Any integer; infinite discrete

d.Any positive integer; infinite continuous

e.Any positive integer; infinite discrete

1 points   

QUESTION 3

Determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false.

The area of a histogram associated with a probability distribution is a number between 0 and 1.

 a.False. The area is exactly equal to one.

b.True. This follows from the definition.

1 points   

QUESTION 4

Let X denote the random variable that gives the sum of the faces that fall uppermost when two fair dice are cast. Find P ( X = 5 ).​

a.

b.

c.

d.

1 points   

QUESTION 5

An examination consisting of ten true-or-false questions was taken by a class of 100 students. The probability distribution of the random variable X, where X denotes the number of questions answered correctly by a randomly chosen student, is represented by the accompanying histogram. The rectangle with base centered on the number 8 is missing. What should be the height of this rectangle?​

​a.0.4

b.0.25

c.0.2

d.0.35

1 points   

QUESTION 6

Give the range of values that the random variable X may assume and classify the random variable as finite discrete, infinite discrete, or continuous.​
X = The distance a commuter travels to work
​a.. The random variable is finite discrete.

b.. The random variable is infinite discrete.

c.. The random variable is continuous.

1 points   

QUESTION 7

Give the range of values that the random variable X may assume and classify the random variable as finite discrete, infinite discrete, or continuous.​
X = The number of defective watches in a sample of four watches.

​a.{0,1,2,3,4}; The random variable is finite discrete

b.X may assume the values of any positive integer. The random variable is continuous.

c.X may assume the values of any positive integer. The random variable is infinite discrete.

d.{0,1,2,3,4}; The random variable is infinite discrete

1 points   

QUESTION 8

Suppose a probability distribution of a random variable X is represented by the accompanying histogram. Shade that part of the histogram whose area gives the probability .​

​a.

b.

c.​

d.

e.

1 points   

QUESTION 9

The accompanying data were obtained in a study conducted by the manager of one supermarket. In this study the number of customers waiting in line at the express checkout at the beginning of each 3-min interval between 9 A.M. and 12 noon on Saturday was observed.

Customers012345678910Frequency of Occurrence312812797533
Find the probability distribution of the random variable X, where X denotes the number of customers observed waiting in line. Draw the histogram representing the probability distribution.
 

a.x          0    1     2     3     4
P(X = x)  0.05 0.017 0.033 0.133 0.2
x         5     6    7     8    9     10
P(X = x)  0.117 0.15 0.107 0.05 0.083 0.05

b.x           0    1     2     3     4
P(X = x)   0.05 0.017 0.033 0.153 0.2
x          5     6    7     8     9    10
P(X = x)   0.107 0.15 0.117 0.083 0.05 0.05

c.x          0    1     2     3     4
P(X = x)  0.05 0.017 0.033 0.133 0.2
x         5     6    7     8     9    10
P(X = x)  0.117 0.15 0.117 0.083 0.05 0.05

1 points   

QUESTION 10

After the private screening of a new television pilot, audience members were asked to rate the new show on a scale of 1 to 10 (10 being the highest rating). From a group of 140 people, the accompanying responses were obtained.
Rating12345678910Frequency of Occurrence2431322182630175​
​
Let the random variable X denote the rating given to the show by a randomly chosen audience member. Find the probability distribution associated with these data. Round answer to the nearest thousandth.

x2345678P(X = x)​​​​​​​
 

a.​x12345678910P(X = x)​​​​​​​​​​​

b.​x12345678910P(X = x)​​​​​​​​​​​

c.​x12345678910P(X = x)​​​​​​​​​​​

d.​x12345678910P(X = x)​​​​​​​​​​​

e.​x12345678910P(X = x)​​​​​​​​​

Two

QUESTION 1

The management of the Cambridge Company has projected the sales of its products (in millions of dollars) for the upcoming year, with the associated probabilities shown in the following table:

SalesProbability
What does the management expect the sales to be next year?
a.18.7

b.15.34

c.28.98

d.29.61

e.32.34

1 points   

QUESTION 2

The management of MultiVision, a cable TV company, intends to submit a bid for the cable television rights in one of two cities, A or B. If the company obtains the rights to city A, the probability of which is 0.3, the estimated profit over the next 10 yr is $10 million; if the company obtains the rights to city B, the probability of which is 0.4, the estimated profit over the next 10 yr is $7 million. The cost of submitting a bid for rights in city A is $300,000 and that of city B is $300,000.​
By comparing the expected profits for each venture, determine whether the company should bid for the rights in city A or city B.
​a.City A

b.City B

1 points   

QUESTION 3

In European roulette the wheel is divided into 37 compartments numbered 1 through 36 and 0. (In American roulette there are 38 compartments numbered 1 through 36, 0, and 00.) Find the expected value of the winnings on a $3 bet placed on red in European roulette. Round your answer to the nearest cent.

a.$0.08%

b.$0.03%

c.- $0.03%

d.- $0.08%

1 points   

QUESTION 4

Based on past experience, the manager of the VideoRama Store has compiled the following table, which gives the probabilities that a customer who enters the VideoRama Store will buy 0, 1, 2, 3, or 4 videocassettes. How many videocassettes can a customer entering this store be expected to buy?

Video- cassettes01234Probability0.420.370.130.040.04

a.E = 0.56

b.E = 0.91

c.E = 0.86

d.E = 0.66

1 points   

QUESTION 5

Find the expected value of a random variable X having the following probability distribution:

x012345P(X = x)

a.E( X) = 2.3125

b.E( X) = 2.1875

c.E( X) = 2.3825

d.E( X) = 1.0975

1 points   

QUESTION 6

If a player placed a $8 bet on red and a $5 bet on black in a single play in American roulette, what would be the expected value of his winnings? Round your answer to the nearest cent.

a. cents

b. cents

c. cents

d. cents

e. cents

1 points   

QUESTION 7

During the first year at a university that uses a 4-point grading system, a freshman took ten 3-credit courses and received one A, three Bs, two Cs, and four Ds.

Compute this student’s grade point average.

Let the random variable X denote the number of points corresponding to a given letter grade. Find the probability distribution of the random variable X and compute E( X), the expected value of X.

a. 2.1;
x 1 2 3 4
P (X = x) 1 3 2 4
E(X) = 2.1

b. 2.9;
x 1 2 3 4
P (X = x) 0.4 0.2 0.3 0.1
E(X) = 2.9

c. 2.9;
x 1 2 3 4
P (X = x) 0.1 0.3 0.2 0.4
E(X) = 2.9

d. 2.1;
x 1 2 3 4
P (X = x) 0.4 0.2 0.3 0.1
E(X) = 2.1
 

1 points   

QUESTION 8

A woman purchased a $10,000, 1-year term-life insurance policy for $150. Assuming that the probability that she will live another year is 0.993, find the company’s expected gain.

a.E = $90

b.E = $100

c.E = $140

d.E = $80

1 points   

QUESTION 9

Bob, the proprietor of Midland Lumber, feels that the odds in favor of a business deal going through are 7 to 6. What is the (subjective) probability that this deal will not materialize?

a.0.4622

b.0.4615

c.0.4647

d.0.4460

1 points   

QUESTION 10

A buyer for Discount Fashions, an outlet for women’s apparel, is considering buying a batch of clothing for $61,000. She estimates that the company will be able to sell it for $80,000, $75,000, or $70,000 with probabilities of 0.20, 0.40, and 0.40, respectively.

Based on these estimates, what will be the company’s expected gross profit?

a.$10,400

b.$23,400

c.$13,000

d.$7,800

e.$15,600

1 points   

General Education Reflection Assignment

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In this assignment, you will prepare a reflection essay related to an area in General Education. The General Education program consisted of the broad set of courses  you completed prior to taking courses in your current program of study: for example, writing, social sciences, mathematics, natural sciences and humanities.  Our accreditor requires Argosy University to measure comprehension of General Education knowledge and skills in students near the point of graduation. 

The input you provide via this assignment will help us measure the effectiveness of our General Education to achieve targeted learning outcomes and will contribute to our efforts to always ensure we have relevant content in our General Education program.  In order to complete this assignment, you will write a reflection paper based on your experiences related to the following General Education program learning outcome:

Multicultural Knowledge and Competence  – Identify the cultural dimensions of human behavior at the individual and societal levels, and how their actions can be adjusted to impact local and global communities.

Reflection Paper
In a 1-page paper, address two out of the four items below. Include examples from your experiences, such as from past classes and assignments.

  • Do you think that a working knowledge of the cultural dimensions of human behavior at the individual and societal levels can be beneficial in your chosen career path?  Explain your position.
  • In what courses do you feel you received an effective exposure to content that helped to raise your awareness of multicultural issues and diversity?
  • In what ways do you think it is appropriate to incorporate learning outcomes that focus on multicultural knowledge and competence in the General Education curriculum?
  • Based on your educational experience, describe how the program helped to prepare you to identify the cultural dimensions of human behavior at the individual and societal levels.

Video series review

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  • Due Sunday by 11:59pm
  • Points 100
  • Submitting a text entry box or a file upload
  • File Types doc and docx

Assignment Overview

Are YOU Ready to be Stand Out From the Crowd?  Are YOU as Marketable and Competitive as you can be?

  • How Can I Prepare for a Job Interview?
    • How Do I Answer Questions About Myself?
    • How Should I Dress?
  • What is Experiential Learning?  How Will that Help Expand My Perspectives and Contribute to My Personal and Professional Growth?
  • Why is it Important to Understand Employment Law?

Assignment Instructions

1. Watch the six videos below, all of which are directly related to course materials and assignments.  These videos were provided for you in the Module Two Video Folder.  Now, you will write your main takeaways from each video. (FYI: The first video informs you about Experiential Learning).  Experiential Learning involves “learning by doing,” followed by reflection, which validates the learning process and helps you relate it to your future career!

2. For each of those videos, list your two main takeaways, writing at least 50 words for each takeaway in complete sentences. NOTE: This written work should be in YOUR OWN WORDS.  Do not use quotes or citations.  For additional information on how to write a review, go to: https://www.tru.ca/__shared/assets/Critical_Analysis_Template30565.pdf  (Links to an external site.)  Although this is not a review of a video, it provides you with a good starting point and organizational structure. 

3. Review the grading rubric below so that you are aware of the grading criteria for this assignment.  You may want to schedule an appointment with a UTA writing tutor at the UTA Writing Center (Links to an external site.) prior to turning the assignment in.

4. Save your document as a MSWord document ONLY.

data ana db

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Prior to beginning work on this discussion forum, read Chapter 1 of your textbook. On the Internet, find the most recent quarterly sales, comparable sales, financial report, or any other data set for a corporation that you work at now or have worked in the past, or an organization you are familiar with.

For example, view Walmart’s Financial Information: Annual Reports & Proxies (Links to an external site.) page to the find the comparable store sales for Walmart. Note: The Walmart Financial Information page is just an example. You will need to find your own company to research, searching for the most recent data.

In your post, examine three different data points from the data set. Be sure to include the URL of the website you are considering.

For the data points you selected, address each of the following:

  • Indicate the name of the data for each data point and the information associated with the data. Copy and paste the three selected data points in your post.
  • Explain whether the variable is cross-sectional or time series.
  • Explain whether the type is quantitative or categorical. If quantitative, give the unit of measurement.
  • What are the important factors in the dataset? How would you plan to handle the missing data if there are some in the report?
  • Explain the value of the data. Who might find this useful? Why?

Modern Popular culture

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  proceeding to Week 1 Assignment 2. Week 1—Final Project Planning Download the Final Project Worksheet from the Learning Resources. Complete the worksheet and submit it as your Week 1 Assignment 2. It will be helpful to retain a copy of the Final Project Worksheet so you can refer to it throughout the course. Select one of the following social issues: • Race/ethnicity • Sexuality • Gender • Social and economic class • Violence • Indecency/free speech Once you have selected your issue, research how this issue is approached in the field of popular culture. Refer to the Learning Resources and the Walden Library Course Guide for this class. On the worksheet, explain why you are interested in this issue. This will serve as the rough draft of your Final Project introductory paragraph. Refer to at least one academically relevant source, either from our classroom, the Walden Library, or Google Scholar, that supports your interest in the issue. Select two popular culture categories as defined in this course. • Film • Episodic moving image (TV shows—may be broadcast or streamed) • Music • Music videos • Fashion • Advertising • Animation (general animation/cartoons such as Disney or Warner Brothers, or genre-specific animation such as Japanese anime) • Food • Printed material (books, magazines, manga, comic books, or graphic novels) • Video games Using the resources available in the classroom, the Walden Library, Google Scholar, or other academically relevant source, identify two quotes that discuss your chosen issue and each of the modern popular culture categories you have chosen. Each quote should be ABOUT the social issue AND the popular culture category. Record the full bibliographic details for these quotes so that you can include them in your Final Project. After completing the worksheet, you will have selected your issue, the categories of popular culture you will further research, a draft introductory paragraph project, and three academically relevant resources for inclusion in your Final Project.

Promotion Concepts and Elements

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For this assignment, you will utilize Martin Luther King Basketball Tournament create a PowerPoint presentation that defines and discusses promotion concepts and promotion mix elements. Your goal is to promote your sports product, service, or event.

Your presentation should include the items listed below.

  • Include a title slide.
  • Provide an introduction of the promotion mix elements. Explain how you will use each of the elements below:
    • advertising,
    • personal selling,
    • sales promotion,
    • public or community relations, and
    • sponsorship.
  • Address the communication process. Explain how you will use each of the communication components below:
    • source,
    • encoding,
    • message,
    • medium,
    • decoding,
    • receiver, and
    • feedback.
  • Discuss your promotional planning ideas. Explain how you will use each of the following methods to develop the promotional plan:
    • identify target market considerations,
    • set promotional objectives,
    • determine the promotional budget, and
    • develop the promotional mix.
  • Briefly explain the role that ethics play in the sports marketing industry.
  • Include a references slide.

Your presentation must be at least eight-to-10 slides in length. The title slide and the references slide do not count toward meeting the total slide count requirement for this assignment. You are required to use your textbook and at least one source from the CSU Online Library.

Ensure the presentation that you create is your own authentic work. Remember to review the rubric and to compare it with your presentation before you submit it.

Article Review 2

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Provide for the 2 articles listed below in 1-2 pages single-spaced (per article) address the following:

1.  Include the full reference for the article using the writing style specific to your program on the title page.

a.  APA Format

b.  Since multiple writing styles are in use within this course, on your title page, please note which style you are using within your assignment. This will help me cater my comments to the style you are using. The style you use need to be the one that is used within your program of study.

2.  State the main goal(s) of the study

3.  Summarize the research design, and discuss the research method(s) used to answer the research question or assess the hypothesis.

4.  Summarize the results of the study.

5.  Discuss the advantages and disadvantages of the study’s research design.

6.  Provide a discussion on how the study can be moved forward. For example, how can the methods be used in your own research proposal? In what other research might these methods apply? Include two well phrased research questions that could be used in follow-on studies to the one reviewed.

Format: You should have 1-inch margins on all 4 sides of your papers; your title page should include your name and date; you should use 12-point times new roman font throughout.

Things to keep in mind: 

Avoid using the first person in formal writing and instead write with an academic voice throughout. Academic voice is usually written in the third person (he, she, it), not first person (I, we) or second person (you). Be consistent in voice and person. See Grammar Girl, “First, Second, and Third Person,” Quick and Dirty Tips for Better Writing, January 20, 2011, http://grammar.quickanddirtytips.com/first-second-and-third-person.aspx/. Furthermore, the academic voice avoids abbreviations, contractions, jargon, and slang. Even informal academic discussions are more formal than causal chat among friends.

The body of your work should be made up of no more than 20% direct quotes.

ARTICALS:

1) Parker, Karen F., Richard Stansfield, and Patricia L. McCall. 2016. “Temporal Changes in Racial Violence, 1980 to 2006: A Latent Trajectory Approach.” Journal of Criminal Justice 47 (December), 1-11.

2) Nix, Justin and Scott E. Wolfe. 2016. “Sensitivity to the Ferguson Effect: The Role of Managerial Organizational Justice.” Journal of Criminal Justice 47 (December): 12-20.

Risk Assessment

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Imagine that you are a new manager responsible for the IT team in a start-up company that provides hosting services for online storefronts. Shortly before you were hired, the IT systems were compromised, resulting in the services going offline for almost 24 hours before services were restored. As a result, the business suffered financial losses that it could ill afford as a start-up company.

The CEO of the company has directed you to put together a plan to mitigate future risks. The first step is to assemble a team of subject matter experts to help you create the plan. The CEO wants to review a list of the recommended team members before you proceed with the plan. You need to create a list of recommended team members in a form for submission to the CEO. In creating the recommendation, evaluate each role selected, documenting the value that the team member will bring to the process. Also, document any potential issues where team members might have conflicting priorities and you would resolve any conflicts. Don’t use generic terms like “Risk Owner” “Risk Manager” etc. You are not limited to the IT department for team members.

Required Resources

None

Submission Requirements

  • Format: Microsoft Word
  • Font: Arial 12-point size, Double-space
  • Citation Style: Follow your school’s preferred style guide
  • Length: No more than 500 words

497.1.a

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Part 1

Create a 6 – 8 slide MS PowerPoint® slide deck for a presentation that you will give to students just beginning their training in cybersecurity.

Your slides will need to provide enough information to these new students in order to fully explain. Include the following points:

  • The importance of confidentiality and integrity in professional IT security practice
  • How security measures in relation to system availability
  • The relationship between poor security implementation and policy to decreased levels of integrity and confidentiality

The aim of the presentation is to strongly increase the awareness and knowledge of these foundational concepts (Confidentiality, Integrity, and Availability) as well as to explain why they are important and how they can best be achieved. The slides will not contain all the information you wish to talk about; only include highlights and main points (follow the 6×6 rule for creating effective presentations). Great slides will each contain some sort of graphical element (image, chart, or diagram) to hold the attention of your audience.

Part 2

Prepare a script of all the things you want to say for each slide of your presentation; as a rough rule of thumb allow one minute of talking points for each slide. From your script (after you have practiced it), create a recording directly within PowerPoint (Narration – Use the “Record Slide Show” Button) of the script using the tools found in the Slide Show tab of MS PowerPoint. Use the “Embedded” technique so that your narration will be part of your final slide presentation.

Note – Your audience can read the information on each slide. Avoid reading from the slides; instead, use your script to augment and explain the main points on each slide.

Test to make sure that when the slide show is running, there is narration for every slide (except the final references slide)

C++program

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Restrictions and Requirements

  • No global variables may be used
  • Your submission must contain at least 2 or more .cpp files and one or more .h files
  • Your submission must have at least 3 user-defined functions in it in addition to main

Problem Description

Write a program that displays the top N most occurring words in a file along with the number of times the word appeared.

  • Words should be displayed from most commonly occurring to least commonly occurring
     
  • A word is considered to be 1 or more consecutive nonwhitespace characters
     
  • Case does not matter when counting words
     

    • HELLO and hello are to be considered the same word
  • When displaying the most commonly occurring words they should all be displayed in lowercase
     
  • When counting a word all leading and trailing non-alphabetical,  non-numeric characters should be removed for a more accurate count
     

    • For example 
      • hello
      • hello,
      • hello.
      • hello;
      • !!$#%hello<>?/ Are all considered to be the same word
    • The complete list of special characters is: ,.:;”|[email protected]#$%^&*()_+-=[]{}<>?/~`’
  • If multiple words tie for most commonly occurring they should all be displayed
     

    • These words should be displayed in alphabetical order
  • You should ignore the following words when counting the most commonly  occurring words because they are so frequent and aren’t interesting
     

    • a, an, and, in, is, it the
  • If there are fewer than N unique occurrences of a word all words should be displayed
     

    • For example, if there were 5 unique words in a file but the user  asked to display the top 10 words then only the top 5 will be displayed  as there are only 5 words in the file

Input

All input will be valid

Command Line Arguments

  1. The path to the file 
    • Required
  2. N, the number of top words to find 
    • Optional
    • If N is not given it should default to 10

Hints

  • When opening the file to read from it make sure to use only an  ifstream and not an fstream. This is because you only have read  permissions on the files on Mimirand opening a file with an fstream  requires both read and write permissions. Since you don’t have write  permissions attempting to open a file with an fstream in testing will  cause you to fail with weird behavior.
  • The algorithm library contains many useful functions for helping to solve this problem
  • You will find maps to be incredibly useful in solving this problem 
    • By default, a map will sort the values in ascending order. You can  change this by providing a comparator function. Take a look back at the example we did in class for a refresher on how to do this.

Example

Assume that shake_it_off.txt contains the lyrics to Taylor Swift’s song “Shake it Off” which can be found here: shake_it_off.txt

./TopCommonWords shake_it_off.txt 5 

1.) These words appeared 78 times: {shake}

2.) These words appeared 70 times: {i}

3.) These words appeared 44 times: {off}

4.) These words appeared 21 times: {gonna}

5.) These words appeared 15 times: {break, fake, hate, play}