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Q. In a symmetrical distribution, Q3 – Q1 = 20, median = 15. Q3 is equal to:
Q. The Correlation coefficient between two variables is the………………..of their regression coefficients.
Q. The mean deviation is minimum when deviations are taken from:
Q. The sum of absolute deviations is minimum when taken from:
Q. A numerical value used as a summary measure for a sample, such as sample mean, is known as a
Q. The sum of the squares of the deviations of the variable is when taken about arithmetic mean
Q. In quality control of manufactured items, the most common measure of dispersion is:
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