21. The measure of dispersion which uses only two observations is called:
22. In an individual series, the frequency of each observation is
23. Which of the following statement(s) is/are true about a schedule?
1. If collects primary data.
2. If collects secondary data.
3. If collects qualitative data.
1. If collects primary data.
2. If collects secondary data.
3. If collects qualitative data.
24. The points of intersection of the 'less than' and 'more than' ogives correspond to
25. . . . . . . . . is the grouping of related facts into various classes.
26. Assertion (A) The mean of the sampling distribution of the mean is the same as the population mean.
Reason (R) As the sample size increases, samples tends to population.
Reason (R) As the sample size increases, samples tends to population.
27. Identify the search engine that is exclusively meant for scientific information.
28. Sampling distribution proportion $${\hat P}$$ (hat) represent
29. The sampling error is inversely proportional to the
30. Four coins are tossed. The probability of getting precisely three heads is:
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- Business Statistics and Research Methods - Section 3
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- Business Statistics and Research Methods - Section 11