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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 262.8 and a standard deviation of 65.2. ​(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 197.6 and 328.0​? b. What is the approximate percentage of women with platelet counts between 132.4 and 393.2​?

a. Approximately 197.6​% of women in this group have platelet counts within 1 standard deviation of the​ mean, or between 197.6 and 328.0.

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