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14-09-2022
Mathematics

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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 257.1 and a standard deviation of 61.9. (All units are 1000 cells/L.) Using the empirical rule, find each
K
approximate percentage below.
a. What is the approximate percentage of women with platelet counts within 2 standard deviations of the mean, or between 133.3 and 380.97
b. What is the approximate percentage of women with platelet counts between 195.2 and 319.07
a. Approximately % of women in this group have platelet counts within 2 standard deviations of the mean, or between 133.3 and 380.9.
(Type an integer or a decimal. Do not round.)

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