Answer to Question #272486 in Statistics and Probability for Cheppie

Statistics and Probability

Question #272486

Let Z be the standard normal random variable. Find P(Z > 2.15)

P(0.25< Z < 1.77)

Expert's answer

"P(Z>2.15) = 1 -P(Z<2.15) \\\\\n=1 -0.9842 \\\\\n= 0.0158 \\\\\nP(0.25<Z<1.77) = P(Z<1.77) -P(Z<0.25) \\\\\n= 0.9616 -0.5987 \\\\\n= 0.3629"

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