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From the data given below state which gr...

From the data given below state which group is more variable `G_1orG_2?` Marks, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 Group `G_1` , 9, 17, 32, 33, 40, 10, 9 Group `G_2` , 10, 20, 30, 25, 43, 15, 7

Text Solution

Verified by Experts

Firstly, the standard deviation of group A is calculated as follows.
The standard deviation of group B is calculated as follows.
Since the mean of both the groups is same, the group with greater standard deviation will be more variable.
Thus, group B has more variability in the marks
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