Question 1160934: Heights of men on a baseball team have a bell-shaped distribution with a mean of 172 cm and a standard deviation of 6 cm. Using the empirical rule, what is the approximate percentage of the men between the following values?
a. 154 cm and 190 cm
b. 160 cm and 184 cm
Answer by ikleyn(52781) (Show Source):
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Heights of men on a baseball team have a bell-shaped distribution with a mean of 172 cm
and a standard deviation of 6 cm. Using the empirical rule, what is the approximate percentage
of the men between the following values?
a. 154 cm and 190 cm
b. 160 cm and 184 cm
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(a) Interval [154,190] is three standard deviations from the mean.
So, the empirical rule for 3 standard deviations is applicable in this case,
giving the ANSWER that the height of approximately 99.7% of the men is in this interval.
(b) Interval [160,184] is two standard deviations from the mean.
So, the empirical rule for 2 standard deviations is applicable in this case,
giving the ANSWER that the height of approximately 95% of the men is in this interval.
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