Use the normal distribution of SAT critical reading scores for which the mean is 512 and the standard deviation is 105. Assume the variable x is normally distributed.
(a) What percent of the SAT verbal scores are less than 650 ?
(b) It 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 550 ?
Qick to view page 1 of the standard normal table.
Cick to view page 2 of the standard normal table.
(a) Approximately ? of the SAT verbal scores are less than 650
(Round to two decimal places as needed)