In Exercise 6.52 on page 206, the lifetime of a transistor is assumed to have a gamma

Question:

In Exercise 6.52 on page 206, the lifetime of a transistor is assumed to have a gamma distribution with mean 10 weeks and standard deviation V50 weeks. Suppose that the gamma distribution assumption is incorrect. Assume that the distribution is normal.

(a) What is the probability that the transistor will last at most 50 weeks?

(b) What is the probability that the transistor will not survive for the first 10 weeks?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...