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he blood platelet counts of a group of women have a​ bell-shaped distribution with a mean...

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

256.6

and a standard deviation of

66.5

​(All units are 1000

​cells/muμ​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

190.1

and

323.1​?

b.

 What is the approximate percentage of women with platelet counts between

123.6

and

389.6

a. Approximately

nothing ​%

of women in this group have platelet counts within

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

math   Statistics-And-Probability   
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