The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 257.3 and a standard deviation of 66. 1. (All units are 1000 cells/L) 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 59.0 and 455.67
b. What is the approximate percentage of women with platelet counts between 1912 and 323.4?
a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 59.0 and 455.6.
(Type an integer or a decimal Do not round)