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

Q. The component of time series useful for long term forecasting is

Q. The measures of dispersion can never be:

Q. If one of the regression coefficients is greater than unity, the other must be:

Q. In statistics out of 100, marks of 21 students in final exams are as 90, 95, 95, 94, 90, 85, 84, 83, 85, 81, 92, 93, 82, 78, 79, 81, 80, 82, 85, 76, 85 then mode of data is

Q. is data that is collected by a researcher from first-hand sources

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

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

Q. If the mean of percentages, rates and ratios is to be calculated then the central tendency measure which must be used in this situation is

Q. Half of the difference between upper and lower quartiles is called: