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Q. If the value of a series are equal , S.D is

Q. Fisher’s formula satisfies ---- test

Q. A measure of dispersion is an average of

Q. Square of Standard Deviation is known as

Q. Modern statistical devices have been made business forecasting more

Q. ----- is defined as the reciprocal of the mean of the reciprocal of these values

Q. Short cut method for calculating arithmatic mean also known as

Q. When the distribution is of open end classes which average may appropriate

Q. Fishers ideal index formula satisfies ---- test

Q. -----is not a patrician value