The following table shows the probability distribution for the number of books a student typically buys at the annual book fair held at an elementaryschool.Number ofBooks3467.Probability0.350.200.150.100.070.080.040,01Let the random variable B represent the number of books a student buys at the next book fair. If each book costs an average of $5, what is the expectedamount of money spent on books for a randomly selected student?$140.00$5.00$17.50$8.95

Probability distribution of a random variable gives the probability at each possible value of the…

Answered: The following table shows the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

An insurance company will insure a $75,000 automobile for its full value against theft by apolicy with a premium of $1,500 per year. Suppose that the probability that the automobile willbe stolen is 0.0075.a. Construct the probability distribution.b. Calculate the insurance company's expected net profit for this policy.
Allen Abbott has a wide-curving, uphill driveway leading to his garage. When there is a heavy snow, Allen hires a local carpenter, who shovels snow on the side in the winter, to shovel his driveway. The snow shoveler charges $30 to shovel the driveway. Following is a probability distribution of the number of heavy snows each winter: Heavy Snows Probability 1 .13 2 .18 4 .26 5 .23 6 .10 7 .07 .03 1.00 Allen is considering purchasing a new self-propelled snowblower for $625 that would allow him, his wife, or his children to clear the driveway after a snow. Discuss what you think Allen’s decision should be and why.
What is the significance of the mean of a probability distribution? Choose the correct answer below. O A. It represents the most likely possible outcome. B. It is the expected value of a discrete random variable. OC. It can never be negative. OD. It gives information about how the outcomes vary.
Every business day, Michael's alarm goes off at 06:30. The probability he hits the snooze button is 20%. a. Give the discrete probability distribution for the event that Michael's alarm does or does not go off on a business day. What type of random variable is this? Explain. b. In 8 business days, what is the probability Michael hits the snooze button at least one time? c. In 80 business days, how many times would we expect Michael to hit the snooze button? What is the associated variance?
The distribution for the size of families in one U.S. city is shown below. Size Proportion 2 0.422 3 0.234 4 0.205 5 0.088 6 0.032 7+ 0.019A family is selected at random. Find the probability that the size of the family is at least 3.
What is the significance of the mean of a probability distribution? Choose the correct answer below. OA. It gives information about how the outcomes vary. OB. It is the expected value of a discrete random variable. OC. It can never be negative. OD. It represents the most likely possible outcome. C
Assume that 12 jurors are randomly selected from a population in which 60% of the people are Mexican-Americans. Refer to the probability distribution table below and find the indicated probabilities. Number of Mexican-Americans Probability 0 0 1 0.0003 2 0.0025 3 0.0125 4 0.042 5 0.1009 6 0.1766 7 0.227 8 0.2128 9 0.1419 10 0.0639 11 0.0174 12 0.0022 a) Find the probability of at most 4 Mexican-Americans among 12 jurors. Give answer as a decimal. b) Find the probability of more than 4 Mexican-Americans among 12 jurors. Give answer as a decimal.
The chance of having a sister or a brother is equally likely. If you have four siblings, there are sixteen equally likely outcomes possible. Create a Probability Distribution to the outcomes based on the total number of sisters given you have 4 siblings Total Number of Sisters ..Probability .. List your outcomes (Total Number of Sisters) from least to greatest. Represent the probabilities using 4 decimal places
An urn contains 2 red and 2 green marbles. We pick a marble, record its color, and replace it. We repeat this procedure a second and a third time. The probability distribution for the number of red marbles is given below. Number of red marbles 0 1 2 3 Probability 1/8 3/8 3/8 1/8 For this distribution, the probability of 2 or more red marbles is given by: a. 1/4. b. 3/8. c. 6/8. d. 1/2.
A police officer randomly selected 558 police records of larceny thefts. The accompanying data represent the number of offenses for various types of larceny thefts. (a) Construct a probability model for type of larceny theft. (b) Are coin-operated machine larcenies unusual? (c) Are larcenies from motor vehicles unusual? Data Table Click the icon to view the table. Type of Larceny Theft Pocket picking Purse snatching Shoplifting Number of Offenses 8 (a) Complete the table below. Type of Larceny Theft Pocket picking Probability 122 From motor vehicles 224 Purse snatching Motor vehicle accessories 60 Bicycles From buildings From coin-operated machines Shoplifting 30 95 From motor vehicles 10 Motor vehicle accessories Вicycles From buildings From coin-operated machines Print Done (Round to three decimal places as needed.)
Suppose you called your local pharmacy to refill a prescription and are put on hold. Assume that the amount of time you will spend on hold is somewhere between 0 and 13 minutes and it follows a uniform distribution. What is the probability you will be on hold for exactly 8 minutes?
Keke's Kookies (https://kekekookies.com/) sells mini cookies in packs of 5 and has determined a probability distribution for the number of cookies that they sell in a given day. X = #sold 0 5 10 15 20 Probability 0.27 0.12 0.23 ...? 0.1 a. What is the probability of selling 15 mini cookies in a given day? b. What is the probability of selling 5 to 15 mini cookies in a given day? c. Find the expected number of mini cookies sold in a day using the discrete probability distribution. d. Find the variance of the number of mini cookies sold in a day using the discrete probability distribution. Round off your answer to the nearest two decimal places. e. Find the standard deviation of the number of mini cookies sold in a day using the discrete probability distribution. Round off your answer to the nearest two decimal places.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS