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The average income tax refund for the 2009 tax year was $3071. Assume the refund per person follows the normal probability distribution with a standard deviation of $984. Complete parts a through K d below a. What is the probability that a randomly selected tax return refund will be more than $20007 8621 (Round to four decimal places as needed.) GD b. What is the probability that a randomly selected tax return refund will be between $1400 and $20007 (Round to four decimal places as needed.)

The average income tax refund for the 2009 tax year was $3071. Assume the refund per person follows the normal probability distribution with a standard deviation of $984. Complete parts a through K d below a. What is the probability that a randomly selected tax return refund will be more than $20007 8621 (Round to four decimal places as needed.) GD b. What is the probability that a randomly selected tax return refund will be between $1400 and $20007 (Round to four decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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K The average income tax refund for the 2009 tax year was $3071. Assume the refund per person follows the normal probability distribution with a standard deviation of $984. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $20007 8621 (Round to four decimal places as needed.) CITED b. What is the probability that a randomly selected tax return refund will be between $1400 and $20007 (Round to four decimal places as needed.) 97
Transcribed Image Text:K The average income tax refund for the 2009 tax year was $3071. Assume the refund per person follows the normal probability distribution with a standard deviation of $984. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $20007 8621 (Round to four decimal places as needed.) CITED b. What is the probability that a randomly selected tax return refund will be between $1400 and $20007 (Round to four decimal places as needed.) 97
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