Find the mean of each of the following frequency distributions: (W) \( \begin{array}{lccccccc}\t...

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Find the mean of each of the following frequency distributions:
(W)
\( \begin{array}{lccccccc}\text { Classes: } & 25-29 & 30-34 & 35-39 & 40-44 & 45-49 & 50-54 & 55-59 \\ \text { Frequency: } & 14 & 22 & 16 & 6 & 5 & 3 & 4\end{array} \)
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