Question: Suppose that X ~ N(, 2). Show that P(X + z) = 1 - and that P( - z/2 X

Suppose that X ~ N(μ, σ2). Show that
P(X ≤ μ + σzα) = 1 - α
and that
P(μ - σzα/2 ≤ X ≤ μ + σza/2) = 1 - α

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