Suppose that the mean cranial capacity for men is 1040 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 ? v of men have cranial capacities between 840 cc and 1240 cc. (b) Approximately 95% of men have cranial capacities between I cc and O cc.

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