The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 252.9 and a standard deviation of 68.8. (All units are 1000 cells/µL.) 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 46.5 and 459.3? b. What is the approximate percentage of women with platelet counts between 115.3 and 390.5?

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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 252.9 and a standard deviation of 68.8. (All units are 1000 cells/µL.) 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 46.5 and
459.3?
b. What is the approximate percentage of women with platelet counts between 115.3 and 390.5?
Transcribed Image Text:The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 252.9 and a standard deviation of 68.8. (All units are 1000 cells/µL.) 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 46.5 and 459.3? b. What is the approximate percentage of women with platelet counts between 115.3 and 390.5?
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