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Question

Find the actual lower class limits, upper class limits and the mid-values of the classes :
$$10 - 19, 20 - 29, 30 - 39$$ and $$40 - 49$$.


A
14.5,24.5,34.5,45.5 and 44.5
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B
14.6,24.5,34.5 and 44.6
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C
14.5,24.5,34.5 and 44.5
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D
14.5,24.6,34.6 and 44.5
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Solution

The correct option is C $$14.5, 24.5, 34.5$$ and $$44.5$$
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 $$44.5$$.

Mathematics

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