An article in American Demographics claims that more than twice as many shoppers are out shopping on the weekendsthan during the week. Not only that, such shoppers also spend more money on their purchases on Saturdays and Sundays!Suppose that the amount of money spent at shopping centers between 4 p.m. and 6 p.m. on Sundays has a normaldistribution with mean $180 and with a standard deviation of $20. A shopper is randomly selected on a Sunday between4 p.m. and 6 p.m. and asked about his spending patterns.n USE SALT(a) What is the probability that he has spent more than $190 at the mall? (Round your answer to four decimal places.)(b) What is the probability that he has spent between $190 and $205 at the mall? (Round your answer to four decimalplaces.)(c) If two shoppers are randomly selected, what is the probability that both shoppers have spent more than $205 at themall? (Round your answer to four decimal places.)

GivenMean(μ)=180standard deviation(σ)=20

Answered: An article in American Demographics…

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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