Question: Let X be normally distributed with mean = 120 and standard deviation = 20> a. Find P(X 86)> b. Find P(80

Let X be normally distributed with mean µ = 120 and standard deviation σ = 20>

a. Find P(X ≤ 86)>

b. Find P(80 ≤ X ≤ 100)>

c. Find x such that P(X ≤ x) = 0.40>

d. Find x such that P(X>x) = 0.90>


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