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Business Statistics and Research Methods
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The measure of dispersion which uses only two observations is called:

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In an individual series, the frequency of each observation is

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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.

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The points of intersection of the 'less than' and 'more than' ogives correspond to

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. . . . . . . . is the grouping of related facts into various classes.

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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.

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Identify the search engine that is exclusively meant for scientific information.

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Sampling distribution proportion (hat) represent

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The sampling error is inversely proportional to the

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Four coins are tossed. The probability of getting precisely three heads is:

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With the help of Ogive curve, we can estimate:

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Questionnaire survey method is used to collect

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Qualities of good questionnaire

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Which of the following is not a valid characteristic of normal distribution?

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Which of the following are true for poisson distribution?

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The limits of Karl Pearson's correlation coefficient value are:

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The geometric mean of two digits-

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According to relative frequency approach P(X) is equal to

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The mean of the marks of 50 students was 35. Later it was found that the marks of two students were wrongly read as 72 and 45 instead of 27 and 54. The correct mean will be

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If the total salary of 15 employees is Rs. 1,00,000 per month, then 1,00,000/15 shows-

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