Find the actual lower class limits, upper class limits and the mid-values of the classes :
$9.5, 14.5, 19.5, 24.5, 29.5, 34.5 a n d 39.5, 44.5, 49.5$

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Solution

Actual lower limits are $9.5, 19.5, 29.5$ and $39.5$ ,
Actual upper limits are $19.5, 29.5, 39.5$ and $49.5$ ,
Mid values are $14.5, 24.5, 34.5$ and $44.5$

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