Question

If x~n(70,25) , find the value of a such that p(|x-70|

Answer 1

Answer:

P(x1 ≤ X ≤ x2) = P(x1 <X<x2)

Explanation:

For any given value x1, P(X = x1) = 0, so. P(x1 ≤ X ≤ x2) = P(x1 <X<x2)

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