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Q. ---- is not a mathematical average

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

Q. Find range from the following values 23 32 85 32 42 10 20 18 28

Q. ----- is the value of item of a series which occurs most frequently

Q. ----- is useful for computing average rate of increase of profits , average rate of speed , average price ..etc

Q. Squares of ---- is known as variance

Q. Standard deviation of a series can have minimum value of -----

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

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

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