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Q. The sum of all the squared deviations is divided by the total number of observations to calculate

Q. What is the median of the data 78, 56, 22, 34, 45, 54, 39, 68, 54, 84?

Q. Index number is a special type of ----------

Q. The regression coefficient of X on Y is:

Q. A numerical value used as a summary measure for a sample, such as sample mean, is known as a

Q. If the sum of squares of the rank differences of 10 pairs of values is 30, find the correlation coefficient between them.

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

Q. The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

Q. Laspeyre's index = 110, Paasche's index = 108, then Fisher's Ideal index is equal to:

Q. Let the coefficient of determination computed to be 0.39 in a problem involving one independent variable and one dependent variable. This result means that: