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Q. When the price of a divided by the price of the preceding year, we, get:

Q. The coefficient of correlation between the regression coefficients is:

Q. The arithmetic mean is 12 and the number of observations are 20 then the sum of all the values is

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

Q. In a moderately skewed distribution, the following equation indicates the relationship among mean, median and mode:

Q. . The average salary of a group of unskilled workers is 10,000 and for a group of skilled workers is 15,000. Combines salary is 12,000. What is the percent of skilled workers?

Q. From which average, the sum of deviations is zero?

Q. The second and fourth moments about mean are 4 and 48 respectively, then the distribution is:

Q. In a symmetrical distribution, Q3 – Q1 = 20, median = 15. Q3 is equal to:

Q. Which index number is called as ideal index number.