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

Q. The value of a correlation is reported by a researcher to be r = −0.5. Which of the following statements is correct?

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

Q. The mean deviation is minimum when deviations are taken from:

Q. Value of b in the trend line Y = a + bX is:

Q. P01 is the index for time

Q. Relationship between correlation coefficient and coefficient of determination is that:

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. The measure of dispersion which uses only two observations is called:

Q. In a five number summary, which of the following is not used for data summarization?