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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 250.8 and a standard deviation of 61.5. (All
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 250.8 and a standard deviation of 61.5. (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 66.3 and 435.3?
b. What is the approximate percentage of women with platalet counts between 127.8 and 373.8?
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