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 260.3 and a standard deviation of 69.7. ​(All units are 1000 ​cells/mu​L.) Using the empirical​ rule, find each approximate percentage below.

a. What is the approximate percentage of women with platelet counts within 1 standard deviation of the​ mean, or between 190.6 and 330.0​?

b. What is the approximate percentage of women with platelet counts between 51.2 and 469.4​?

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Answer #1

By Empirical rule

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