a) Let Z be standard normal. Find P(Z < −0.73) b) Let Z be standard normal. Find the number z0 such that P(Z > z0) = 0.1093 c)  A random variable X is normally distributed with unknown mean µ and variance σ2  . If P(X > 9.5) = 0.0039 and P(X < −8.5) = 0.0336. Find the mean and variance of the

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a) Let Z be standard normal. Find P(Z < −0.73)

b) Let Z be standard normal. Find the number z0 such that P(Z > z0) = 0.1093

c)  A random variable X is normally distributed with unknown mean µ and variance σ2  . If P(X > 9.5) = 0.0039 and P(X < −8.5) = 0.0336. Find the mean and variance of the random variable X

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