Q2 of 33 Page 156

Find the mean of the data;10.25, 9, 4.75, 8, 2.65, 12, 2.35

Given, observations 10.25, 9, 4.75, 8, 2.65, 12, 2.35

Clearly, No of observations, n = 7


We know,


Arithmetic mean of x1, x2, x3, …, xn (n observations) is



Therefore, mean of above data




Hence, mean is 7


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