Q6 of 69 Page 7

Find the median from the following table:


We have n = 80


So,


The cumulative Frequency just greater than is 56 then the median class is 40 – 50 such that


the lower limit (l) = 40


cumulative frequency of the class preceding 40 – 50 (cf) = 37


the frequency of the median class 40 – 50 =19,


class size (h) = 10


Using the formula, , we have



= 40 + 1.58


=41.58


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