The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 252.7 and a standard deviation of 67.8. (All units are 1000 cells/μL.)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 49.3 and 456.1?b.What is the approximate percentage of women with platelet counts between 117.1 and 388.3?

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 14PPS

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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 252.7 and a standard deviation of 67.8. (All units are 1000 cells/μL.)
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 49.3 and 456.1?
b.	What is the approximate percentage of women with platelet counts between 117.1 and 388.3?

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