Homework Help is Here – Start Your Trial Now!
Math
Statistics
The average income tax refund for the 2009 tax year was $2956. Assume the refund p person follows the normal probability distribution with a standard deviation of $971. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $2400? (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1500 and $2600?

The average income tax refund for the 2009 tax year was $2956. Assume the refund p person follows the normal probability distribution with a standard deviation of $971. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $2400? (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1500 and $2600?

MATLAB: An Introduction with Applications
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
icon
Related questions
Question
The average income tax refund for the 2009 tax year was $2956. Assume the refund per person follows the normal probability distribution with a standard deviation of $971. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $2400? (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1500 and $2600? (Round to four decimal places as needed.) c. What is the probability that a randomly selected tax return refund will be between $3100 and $3900? (Round to four decimal places as needed.) d. What refund amount represents the 35th percentile of tax returns? (Round to the nearest dollar as needed.)
Transcribed Image Text:The average income tax refund for the 2009 tax year was $2956. Assume the refund per person follows the normal probability distribution with a standard deviation of $971. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $2400? (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1500 and $2600? (Round to four decimal places as needed.) c. What is the probability that a randomly selected tax return refund will be between $3100 and $3900? (Round to four decimal places as needed.) d. What refund amount represents the 35th percentile of tax returns? (Round to the nearest dollar as needed.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 10 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
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