Let y be a random variable having a normal distribution with mean equal to 250 and standard

Question:

Let y be a random variable having a normal with mean equal to 250 and standard deviation equal to 50.
a. Find a value y0, such that P(y > y0) = .01.
b. Find a value y0, such that P(y > y0) = .025.
c. Find two values y1 and y2, such that (y1 + y2)/2 = 250 and P(y1 < y < y2) = .95.
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...