The average income tax refund for the 2009 tax year was $2905. Assume the refund perperson follows the normal probability distribution with a standard deviation of $998. Completeparts a through c 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.)b. What is the probability that a randomly selected tax return refund will be between $3400 and$4400?(Round to four decimal places as needed.)c. What refund amount represents the 35th percentile of tax returns?(Round to the nearest dollar as needed.)Enter your answer in each of the answer boxes

Let "X" be the average income tax refund. Draw the normal curve and shade the area to the right…

The average income tax refund for the 2009 tax year was $2905. Assume the relund per person follows the normal probability distribution with a standard deviation of $998. Complete parts a through c below. a. What is the probability that a randomly selected tax return refund will be more than $2000 D(Round to four decimal places as needed) b. What is the probability that a randomly selected tax return refund will be between $3400 an $4400? Round to four decimal places as needed.) c. 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 $2905. Assume the relund per person follows the normal probability distribution with a standard deviation of $998. Complete parts a through c below. a. What is the probability that a randomly selected tax return refund will be more than $2000 D(Round to four decimal places as needed) b. What is the probability that a randomly selected tax return refund will be between $3400 an $4400? Round to four decimal places as needed.) c. 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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