The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 264.6 and a standard deviation of 61.1. (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 81.3 and 447.9? b. What is the approximate percentage of women with platelet counts between 203.5 and 325.7? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 81.3 and 447.9. (Type an integer or a decimal. Do not round.)