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Q. For a positively skewed distribution, mean is always:

Q. The sum of the squares of the deviations of the variable is when taken about arithmetic mean

Q. The measurements of spread or scatter of the individual values around the central point is called:

Q. In a regression analysis if r2 = 1, then :

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

Q. What is the value of the first quartile for observations 15, 18, 10, 20, 23, 28, 12, 16?

Q. When the price of a divided by the price of the preceding year, we, get:

Q. The suitable average for averaging the shoe sizes for children is:

Q. Seasonal variations are short term variations with period

Q. The percent of total variation of the dependent variable Y explained by the set of independent variables X is measured by: