Question

Suppose that the mean cranial capacity for men is 1080 cc (cubic centimeters) and that the standard deviation is 200 cc. Assuming that men's cranial capacities

are normally distributed, complete the following statements.
(a) Approximately 68% of men have cranial capacities between cc and cc.
(b) Approximately 99.7% of men have cranial capacities between 680 cc and
1480 cc.

Answer 1

(a) Approximately 68% of men have cranial capacities between 880 cc and 1280 cc. (b) Approximately 99.7% of men have cranial capacities between 680 cc and 1480 cc.