21. Karl Pearson's coefficient of correlation between two variables is
22. When quantitative measures for certain factors cannot be fixed the measure which is generally adopted is known as?
23. Statement I: If the alternative hypothesis is as $$\mu \ne {\mu _0}$$ ; a researcher requires two-tailed test in hypothesis-testing.
Statement II: The mean of the sampling distribution of mean is not equal to the parametric value of mean.
Statement II: The mean of the sampling distribution of mean is not equal to the parametric value of mean.
24. If unexplained variation between variables X and Y is 36%, what is the coefficient of correlation between the variables?
25. A reasoning where we start with certain particular statements and conclude with a universal statement is called:
26. Process of arranging data into a new order is called
27. From the following, identify one situation where 'F' test cannot be used.
28. The most widely used method of measuring seasonal variations is
29. Sturge's rule is used to find out directly
30. Action research that is usually meant for professional people is:
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