SAT Math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of

Question:

SAT Math scores have a bell-shaped with a mean of 515 and a standard deviation of 114.
(a) What percentage of SAT scores is between 401 and 629?
(b) What percentage of SAT scores is less than 401 or greater than 629?
(c) What percentage of SAT scores is greater than 743?
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...