The test scores for a very large statistics class have a bell-shaped distribution with a mean of

Question:

The test scores for a very large statistics class have a bell-shaped with a mean of 70 points.
a. If 16% of all students in the class scored above 85, what is the standard deviation of the scores?
b. If 95% of the scores are between 60 and 80, what is the standard deviation? 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...