The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 247.3 and a standard deviation of 63.9. (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 2 standard deviations of the mean, or between 119.5 and 375.1? b. What is the approximate percentage of women with platelet counts between 55.6 and 439.0? . . . a. Approximately % of women in this group have platelet counts within 2 standard deviations of the mean, or between 119.5 and 375.1. (Type an integer or a decimal. Do not round.) b. Approximately |% of women in this group have platelet counts between 55.6 and 439.0. (Type an integer or a decimal. Do not round.)