Heights of men on a baseball team have a bell-shaped


1. Find the standard? deviation:

Interval 30-39 40-49 50-59 60-69 70-79 80-89

Frequency 3 22 38 24 10 4

2. Heights of men on a baseball team have a? bell-shaped distribution with a mean of 177 cm and a standard deviation of 8 cm.Using the empirical? rule, what is the approximate percentage of the men between the following? values?

a. % of the men are between 161 cm and 193 cm

b. % of the men are between 169 and 185 cm

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Mathematics: Heights of men on a baseball team have a bell-shaped
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