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Frequency Distribution of Students' Heights

STATS-WEDCXV

A frequency distribution of "heights of female college students" was recorded to the nearest inch. The midpoint of the lowest class is $62.5"$ and the midpoint of the next class is $65.5"$.

What are the class limits for the the third class?

A

$64"$ and up to $67"$

B

$67"$ and $69"$

C

$67"$ and up to $70"$

D

$66"$ and $68"$