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Assume a member is selected at random from the population represented by the graph. Find the...

Assume a member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded area of the graph. Assume the variable x is normally distributed. 200<x<450 u=502 sigma=107

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Answer #1

This is a normal distribution question with

x1 = 200
x2 = 450
P(200.0 < x < 450.0)=?


This implies that


PS: you have to refer z score table to find the final probabilities.


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