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Business Statistics and Research Methods
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Q1001

Karl Pearson's coefficient of correlation between two variables x and y is equal to

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Q1002

Fisher's ideal index is based on

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Q1003

. . . . . . . . is particularly useful when we have to compute the mean of means.

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Q1004

For a positively skewed disttibution, mean is always:

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Q1005

It is helpful to use a multi-stage cluster sample when:

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Q1006

Systematic sampling is used for which of the following?
1. Quota sampling
2. Non-probability sampling
3. Probability sampling

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Q1007

The first measure of dispersion is called-

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Q1008

Let A and B be two events such that the occurrence of A implies occurrence of B, but not vice-versa, then the correct relation between P(A) and P(B) is:

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Q1009

In a general class interval, margin of error is equal to

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Q1010

The value of the median of an even discrete series will be

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Q1011

Match the following.

List-I (Terms)	List-II (Definitions)
a. Simple regression	1. Process of predicting one variable from another
b. Multiple regression	2. Single variable is used to predict another variable on the assumption of linear relationship between the given variables
c. Simple linear regression analysis	3. Involves two or more independent variables and one dependent variable

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Q1012

By which of the following methods, the sampling error, in comparison to biased approach, can be reduced?

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Q1013

The significance of the difference between two means of the populations, when σ² values are known and equal, is tested by

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Q1014

The . . . . . . . . is less sensitive to extreme scores than the . . . . . . . .

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Q1015

If a frequency distribution is positively skewed, the mean of the distribution is:

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Q1016

The joint probability is:

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Q1017

If a perpendicular on X-axis from the point of intersection of both 'less than' and 'more than' frequency curves is drawn, it gives the value of

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Q1018

Match the items of List-I with the items of List-Il and denote the option of correct matching.

List-I	List-II
a. Hypothesis of Sales Revenue Maximization	1. W. J. Baumol
b. Hypothesis of Maximization of Firm's Growth Rate	2. Robin Marris
c. Hypothesis of Maximization of Managerial Utility Function	3. O. E. Williamson
d. Hypothesis of Satisfying Behaviour	4. Cyert and March

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Q1019

Consider the following statements.
Statement I: The absolute value of the difference between an unbiased estimate and the corresponding population parameter is called sampling error.
Statement II: Multi-stage sampling is a restricted non-probability-based sampling technique.

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Q1020

Which one is not the method of collecting primary data?

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