Suppose that the amounts that students at a college spend on textbooks this semester have a normal curve with mean $450 and standard deviation $150 (Round your answers to four decimal places ) (a) What is the probability that a randomly selected student spends less than $540 on textbooks this semes...

for normal distribution z score Xx here mean ...

Suppose that the amounts that students at a college spend on textbooks this semester have a normal

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Suppose that the amounts that students at a college spend on textbooks this semester have a normal curve with mean μ = $450 and standard deviation σ = $150. (Round your answers to four decimal places.)

(a) What is the probability that a randomly selected student spends less than $540 on textbooks this semester?

(b) What is the probability that a randomly selected student spends more than $300 on textbooks this semester?

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Related Book For answer-question

Macroeconomics

ISBN: 978-0138014919

12th edition

Authors: Robert J Gordon

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Posted Date: Nov 25, 2019 05:03 AM

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Macroeconomics

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