The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 263.4 and a standard deviation of 62.5. (All units are 1000 cells/JL.) 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 138.4 and 388.4? b. What is the approximate percentage of women with platelet counts between 75.9 and 450.9? a. Approximately |% of women in this group have platelet counts within 2 standard deviations of the mean, or between 138.4 and 388.4. (Type an integer or a decimal. Do not round.) Vie b. Approximately % of women in this group have platelet counts between 75.9 and 450.9. (Type an integer or a decimal. Do not round.) K (0