The average income tax refund for the 2009 tax year was $2964. Assume the refund per person follows the normal probability distribution with a standard deviat $974. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $1900? 0.8627 (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1300 and $2300? 0.2037 (Round to four decimal places as needed.) c. What is the probability that a randomly selected tax return refund will be between $3300 and $4000? 0.2224 (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.)

The average income tax refund for the 2009 tax year was $2964. Assume the refund per person follows the normal probability distribution with a standard deviat $974. Complete parts a through d below. a. What is the probability that a randomly selected tax return refund will be more than $1900? 0.8627 (Round to four decimal places as needed.) b. What is the probability that a randomly selected tax return refund will be between $1300 and $2300? 0.2037 (Round to four decimal places as needed.) c. What is the probability that a randomly selected tax return refund will be between $3300 and $4000? 0.2224 (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.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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