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Q. A complete business cycle consists of a period of:

Q. The component of time series useful for long term forecasting is

Q. For a symmetrical distribution, Q1 and Q3 are 20 and 60 respectively. The value of median will be:

Q. If the coefficient of determination is a positive value, then the regression equation:

Q. Find the median of the set = { 11,22,33,55,66,99 }

Q. If the quartile range is 24 then the quartile deviation is:

Q. In a bivariate sample, the sum of squares of differences between marks of observed values of two variables is 33 and the rank correlation between them is 0.8. Find the number of pairs of observations:

Q. For a symmetrical distribution:

Q. The value at the base time period serves as the standard point of comparison

Q. A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.