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Q. Co. Efficient of variation is equal to

Q. Graphical method of measuring variability is first used by

Q. The word statistics have been derived from the Latin word –

Q. ----- divides the data into 4 equal parts

Q. ----- is not a factor responsible for seasonal variation

Q. -----is a figure that represents the whole group

Q. In olden days statistics also called ………………

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

Q. ----- are devices for measuring differences in the magnitude of a group of related variables

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