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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 257.5 and a standard deviation of 64.6. (All units are 1000 cells/uL.) 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 63.7 and 451.3? b. What is the approximate percentage of women with platelet counts between 128.3 and 386.7? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 63.7 and 451.3. (Type an integer or a decimal. Do not round.) b. Approximately % of women in this group have platelet counts between 128.3 and 386.7. (Type an integer or a decimal. Do not round.)

The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 257.5 and a standard deviation of 64.6. (All units are 1000 cells/uL.) 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 63.7 and 451.3? b. What is the approximate percentage of women with platelet counts between 128.3 and 386.7? a. Approximately % of women in this group have platelet counts within 3 standard deviations of the mean, or between 63.7 and 451.3. (Type an integer or a decimal. Do not round.) b. Approximately % of women in this group have platelet counts between 128.3 and 386.7. (Type an integer or a decimal. Do not round.)

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 5CR
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### Understanding Blood Platelet Counts Using the Empirical Rule The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 257.5 and a standard deviation of 64.6. (All units are 1000 cells/µL.) Using the empirical rule, we can find approximate percentages as follows: #### Problem Statements: **a.** What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 63.7 and 451.3? **b.** What is the approximate percentage of women with platelet counts between 128.3 and 386.7? #### Solution: **a.** Approximately [Text Box] % of women in this group have platelet counts within 3 standard deviations of the mean, or between 63.7 and 451.3. (*Type an integer or a decimal. Do not round.*) **b.** Approximately [Text Box] % of women in this group have platelet counts between 128.3 and 386.7. (*Type an integer or a decimal. Do not round.*)
Transcribed Image Text:### Understanding Blood Platelet Counts Using the Empirical Rule The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 257.5 and a standard deviation of 64.6. (All units are 1000 cells/µL.) Using the empirical rule, we can find approximate percentages as follows: #### Problem Statements: **a.** What is the approximate percentage of women with platelet counts within 3 standard deviations of the mean, or between 63.7 and 451.3? **b.** What is the approximate percentage of women with platelet counts between 128.3 and 386.7? #### Solution: **a.** Approximately [Text Box] % of women in this group have platelet counts within 3 standard deviations of the mean, or between 63.7 and 451.3. (*Type an integer or a decimal. Do not round.*) **b.** Approximately [Text Box] % of women in this group have platelet counts between 128.3 and 386.7. (*Type an integer or a decimal. Do not round.*)
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