The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 245.3 and a standard deviation of 66.8. (All units are 1000 cells/uL.) Using the empirical rule, find each approximate percentage below.
a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 44.9 and 445.7?
b. What is the approximate percentage of women with platelet counts between 111.7 and 378.9?
CBD
a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 44.9 and 445:7.
(Type an integer or a decimal. Do not round.)