In: Math
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 261.7 and a standard deviation of 65.5. (All units are 1000 cells/muL.) Using the empirical rule, find each approximate percentage below. a. What is the approximate percentage of women with platelet counts within 2 standard deviations of the mean, or between 130.7 and 392.7? b. What is the approximate percentage of women with platelet counts between 65.2 and 458.2?