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Q. In a normal distribution Q.D = …………..

Q. Test to determine whether a given method will work both forward & backward

Q. When there is perfect correlation, the value of the correlation coefficient is:

Q. The relationship between x and y is y = 2x + 1. The correlation between x and y is:

Q. Which of the following is described as ‘barometers of economic activity’?

Q. Any hypothesis, which are tested for the purpose of rejection under the assumption that it is true, is called

Q. If the Paasches’ index is 196 and Fishers index is 210, What is the value of the Laspeyres’ index?

Q. The scale applied in statistics which imparts a difference of magnitude and proportions is considered as

Q. The measure of dispersion based on all the observations of the series is …………….

Q. Sample statistics are also represented as