The income tax refund for the 2009 tax year was $2872. Assume the refund per average person follows the normal probability distribution with a standard deviation of $982. Complete parts a through d below. ..... a. What is the probability that a randomly selected tax return refund will be more than $2000? (Round to four decimal places as needed.)
The income tax refund for the 2009 tax year was $2872. Assume the refund per average person follows the normal probability distribution with a standard deviation of $982. Complete parts a through d below. ..... a. What is the probability that a randomly selected tax return refund will be more than $2000? (Round to four decimal places as needed.)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:The average income tax refund for the 2009 tax year was $2872. Assume the refund per
person follows the normal probability distribution with a standard deviation of $982.
Complete parts a through d below.
a. What is the probability that a randomly selected tax return refund will be more than
$2000?
(Round to four decimal places as needed.)
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