The blood platelet counts of a group of women have a​ bell-shaped distribution with a mean of 246.3 and a standard deviation of 67.4. ​(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 1standard deviation of the​ mean, or between 178.9 and 313.7​? ​(Type an integer or a decimal. Do not​ round.) b. What is the approximate percentage of women with platelet counts between 44.1 and 448.5​? ​(Type an integer or a decimal. Do not​ round.)

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