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Which of the following is correct? The circuit shown in the

For individual observations, reciprocal of arithmetic mean i

Mode of set of 20 observations is 18 and skewness of observa

Reciprocal of arithmetic mean of reciprocal of values x1, x2

Arithmetic mean is 25 and all sum of observations is 350 the

The arithmetic mean of the scores of a group of students in

The arithmetic mean of the scores of a group of students in

Positive square root of mean of squared deviations of some o

Mean of squared deviations of some observations from their a

If the mean of 5 observations x,x 2,x 4,x 6 and x 8 is 1 the