Question
Find the mean deviation about the median for the data.$$\begin{array}{cccccc}x_{i} & 15 & 21 & 27 & 30 & 35 \\f_{i} & 3 & 5 & 6 & 7 & 8\end{array}$$
Step 1
The cumulative frequency is found by adding each frequency from the frequency distribution to the sum of its predecessors. The last value will be the total for all observations, which is 29 in this case. The cumulative frequencies are 3, 8, 14, 21, and 29. Show more…
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