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Q. Half of the difference between upper and lower quartiles is called:

Q. The ratio of price of single commodity in a given period to its price in another period is called the

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

Q. In a regression analysis if r2 = 1, then :

Q. In a moderately skewed distribution, the mode and median are 20 and 24 respectively. Calculate the value of mean.

Q. In order to compare two series we can use

Q. While computing a weighted index, the current period quantities are used in the:

Q. Since the mode is the most frequently occurring data value, it

Q. In the regression equation Y = a+bX, the Y is called:

Q. The smaller the variance the less spread of the data around the mean