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8. Let X be a continuous raudom variable such that E(X)= 10 and Var(X) =1, which of the following MUST be true? P(X > 12) = P(Z > 210) = P(Z > 2) P(X > 12) < P(X > 12) %3D P(X > 12) = P(X < 8) %3D P(X > 12) > P(X > 13)

8. Let X be a continuous raudom variable such that E(X)= 10 and Var(X) =1, which of the following MUST be true? P(X > 12) = P(Z > 210) = P(Z > 2) P(X > 12) < P(X > 12) %3D P(X > 12) = P(X < 8) %3D P(X > 12) > P(X > 13)

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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8. Let X be a continuous raudom variable such that E(X)=I0 and Var(X) =1, which of the following MUST be true? P(X > 12) = P(Z > 12;10) = P(Z > 2) P(X > 12) < P(x > 12) %3D P(X > 12) = P(X < 8) P(X > 12) > P(X > 13)
Transcribed Image Text:8. Let X be a continuous raudom variable such that E(X)=I0 and Var(X) =1, which of the following MUST be true? P(X > 12) = P(Z > 12;10) = P(Z > 2) P(X > 12) < P(x > 12) %3D P(X > 12) = P(X < 8) P(X > 12) > P(X > 13)
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