The blood platelet counts of a group of women have a bell-shaped distribution with a mean of
Question:
The blood platelet counts of a group of women have a bell-shaped distribution with a mean of
246.9
and a standard deviation of
61.5.
(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 2 standard deviations of the mean, or between 123.9 and 369.9? |
b. | What is the approximate percentage of women with platelet counts between 185.4 and 308.4? |
Question content area bottom
Part 1
a. Approximately
enter your response here%
of women in this group have platelet counts within
2
standard
deviations
of the mean, or between
123.9
and
369.9.
(Type an integer or a decimal. Do not round.)
Part 2
b. Approximately
enter your response here%
of women in this group have platelet counts between
185.4
and
308.4.
(Type an integer or a decimal. Do not round.)