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Q. Seasonal variations are short term variations with period

Q. Factor Reversal test is satisfied by:

Q. The measures used to calculate the variation present among the observations relative to their average is called:

Q. If all the scores on examination cluster around the mean, the dispersion is said to be:

Q. The regression equation is the line with slope a passing through

Q. In a mesokurtic or normal distribution, µ4 = 243. The standard deviation is:

Q. If the regression line is Y on X, then the variable X is known as..........................

Q. The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be:

Q. If two variables, x and y, have a very strong linear relationship, then:

Q. ____ is an extension of time reversal test