The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 263.1 and a standard deviation of 66.9. (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 62.4 and 463.8? b. What is the approximate percentage of women with platelet counts between 129.3 and 396.9? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 62.4 and 463.8. (Type an integer or a decimal. Do not round.)

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