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The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 259.8 and a standard deviation of 68.1. (All

The blood platelet counts of a group of women have a bell-shaped distribution with a mean of

259.8

and a standard deviation of

68.1.

(All units are 1000

cells/L.)

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

55.5

and

464.1?

b.

What is the approximate percentage of women with platelet counts between

191.7

and

327.9?

Question content area bottom

Part 1

a. Approximately

enter your response here%

of women in this group have platelet counts within

3

standard

deviations

of the mean, or between

55.5

and

464.1.

(Type an integer or a decimal. Do not round.)

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