A random variable X has a normal distribution N(13,49). (1) Find E(X) and V(X). (2) Find E(2X-10) and V(2X-10). (3) Let terms of $. be the cdf of the standard normal distribution. Find P(|X-13| <21) in

Calculus For The Life Sciences
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Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
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A random variable X has a normal distribution N(13,49).
(1) Find E(X) and V(X).
(2) Find E(2X-10) and V(2X-10).
(3) Let
terms of
be the cdf of the standard normal distribution. Find P(|X-13|<21) in
.
Transcribed Image Text:A random variable X has a normal distribution N(13,49). (1) Find E(X) and V(X). (2) Find E(2X-10) and V(2X-10). (3) Let terms of be the cdf of the standard normal distribution. Find P(|X-13|<21) in .
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