Question
The blood platelet counts of a group of women have a bell-shaped distribution with a mean...
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 255.7 and a standard deviation of 66.1. (All units are 1000 cells/muL.) 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 57.4 and 454.0?
b. What is the approximate percentage of women with platelet counts between 189.6 and 321.8?
Homework Answers
Answer #1
a. What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 57.4 and 454.0?
99.7%
b. What is the approximate percentage of women with platelet counts between 189.6 and 321.8?
68%
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