Q1 of 71 Page 199

Following are the marks of 10 students in mathematics, 52, 75, 40, 70, 43, 40, 65, 35, 48, 52. Calculate the mean marks.

We know that,


Where, = Mean, xi = observations and n = no. of observations.




⇒ = 51


∴ mean marks = 51


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