The age distribution of 100 life-insurance policy holders is as follows
Age (on nearest 17-19.5 20-25.5 26-35.5 36-40.5 41-50.5 51-55.5 56-60.5 61 - 70.5
birth day)
No of persons 5 16 12 26 14 12 6 5
Calcualte the mean deviation from the median age.
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