Question

.) a.) Suppose that X is a normal random variable with mean 5. If PCX >...

.) a.) Suppose that X is a normal random variable with mean 5. If PCX > e} o.3 approximately what is Var(X)?

  1. Measure the number of ldlometers traveled by a given car before its transmission ceases to function. Suppase that this distribution is governed by the exponential distribution with mean 900, 000. What is the probability that a car, transmission will fail during its first 50, 000 kilometers of operation?
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Answer #1

Answer:

a) variance= 32.78

b) probability = 0.0540

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