Most of you have had experience with exam scores that were rescaled so that the instructor could

Question:

Most of you have had experience with exam scores that were rescaled so that the instructor could “grade on a curve.” Assume that a large Psychology 1 class has just taken an exam with 300 four-choice multiple-choice questions. (That’s the kind of Psychology 1 exam I took when
I was but a lad. Honest!) Assume that the of grades is normal with a mean of 195 and a standard deviation of 30.
(a) What percentage of the counts will lie between 165 and 225?
(b) What percentage of the counts will lie below 195?
(c) What percentage of the counts will lie below 225?
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...