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Q. Which divides the value of a variable into two equal parts?

Q. Statistics helps in

Q. The arithmetic mean of a variable ‘x’ is denoted by the symbol.

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

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

Q. ------ is used whenever the relative importance of the items in a series differs

Q. A measure of skewness is only the difference between 2-------

Q. Measures of dispersion are statistical devices to measure the ----- in a series

Q. When first quartile is 10 , third quartile is 20 , value of quartile deviation is

Q. Modern statistical devices have been made business forecasting more