uppose that ? is normally distributed with mean 75 and standard deviation 25. A. What is the probability that ? is greater than 112.25? Probability = B. What value of ? does only the top 20% exceed? X =

uppose that ? is normally distributed with mean 75 and standard deviation 25. A. What is the probability that ? is greater than 112.25? Probability = B. What value of ? does only the top 20% exceed? X =

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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Question

Suppose that ? is normally distributed with mean 75 and standard deviation 25.

A. What is the probability that ? is greater than 112.25?

Probability =

B. What value of ? does only the top 20% exceed?

X =

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Expert Solution

Step 1

Given that,

$μ = 75, σ = 25$

(A)

The probability that X is greater than 112.25 is,

Therefore, the required probability is, 0.0681

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