a) The Project Manager found that distribution of the amount of gravel (in tons) sold by aparticular construction supply company in a given week is a continuous random variable X withPDF asf(x) =(1- x?)0sx s1elsewhereFind the expected value and standard deviation of the amount of gravel sold in a week.b) Consider a normally distributed random variable X with a mean of 85 and standarddeviation of 10. Find P(90 < X < 100)?

Answered: Image /qna-images/answer/f08bcd3a-42fa-4ad6-bdf5-3ea770aff515.jpg

a) The Project Manager found that distribution of the amount of gravel (in tons) sold by a particular construction supply company in a given week is a continuous random variable X with PDF as f(x) =5(1-x²) 0sx s1 elsewhere Find the expected value and standard deviation of the amount of gravel sold in a week. b) Consider a normally distributed random variable X with a mean of 85 and standard deviation of 10. Find P(90 < X < 100)?

a) The Project Manager found that distribution of the amount of gravel (in tons) sold by a particular construction supply company in a given week is a continuous random variable X with PDF as f(x) =5(1-x²) 0sx s1 elsewhere Find the expected value and standard deviation of the amount of gravel sold in a week. b) Consider a normally distributed random variable X with a mean of 85 and standard deviation of 10. Find P(90 < X < 100)?

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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