collect the heights & Weights!
Of 20 members in your family &
find the mean and median of the data
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Weight No. Of Students(x) xf cf
47 4 188 4
50 3 150 7
53 7 371 14
56 2 112 16
60 4 240 20
266 1061
Then, mean =ΣxΣxf=2661061=3.99
Here, N=20 then 220=10
In the table, cumulative frequency greater then 10 is 14 where value of x=53
Then, median is 53
In the given table, greatest frequency is 7 where value of x=53 then mode is 53.
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