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Q. The rank correlation coefficient was discovered by....................................

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

Q. The rank correlation coefficient of a debating contest involving 10 participants was calculated as 0.6. However, it was later discovered that the difference in the ranks of some participants was read as 8 instead of 3. Find the correct correlation coefficient:

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

Q. The degree of peaked ness or flatness of a unimodel distribution is called:

Q. Factor Reversal test is satisfied by:

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. If the values of mean, median and mode coincide in a unimodal distribution, then the distribution will be:

Q. In the class intervals 40 – 50, 50 – 60, the number 50 is included in which of the following?

Q. If in a discrete series 75% values are less than 30, then: