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Q. The range of the scores 29, 3, 143, 27, 99 is:

Q. The scatter in a series of values about the average is called:

Q. Which partition value divides the series into two equal parts.

Q. A measure of is a single value that attempts to describe a set of data by identifying the central position within that set of

Q. Find the mode of 8, 5, 7, 10, 15, 21, 5, 7, 2, 5

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.

Q. If bxy and byx are two regression coefficients, they have:

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

Q. In a bivariate distribution, Spearman’s Coefficient of Correlation is -0.25. If the sum of the squares of various ranks is 150, find out the number of pairs of items:

Q. Given Mean = 70.2 and mode = 70.5. Find the median using empirical relationship among them.