Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

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Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12

31.
X measures Wages in Rupees

A. Unit of its average is Rs. and unit of variance is Rs.

B. Unit of its average is Rs. and unit of variance is Rs. Square

C. Unit of its average is Rs. but variance does not have any unit

D. Unit of its average is Rs. but unit of variance is square not of Rs.

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32.
Which of the following relation is correct?

A. $$\overline X = \sqrt {G.M. \times H.M.} $$

B. $$G.M. = \frac{{\overline X + H.M.}}{2}$$

C. $$G.M. = \sqrt {\overline X .H.M.} $$

D. $$H.M. = \sqrt {\overline X .G.M.} $$

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33.
The probable error of the coefficient of correlation (r) is calculated by which one of the following formulae?

A. $$0.6745\sqrt {\frac{{1 - {r^2}}}{n}} $$

B. $$0.6745\frac{{1 - {r^2}}}{{\sqrt n }}$$

C. $$0.6745\frac{{1 + {r^2}}}{{\sqrt n }}$$

D. $$0.6745\frac{{1 + {r^2}}}{n}$$

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34.
"Controlled Group" is a term used in:

A. Survey research

B. Historical research

C. Experimental research

D. Descriptive research

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35.
Which of the following variables cannot be expressed in quantitative terms?

A. Socio-economic Status

B. Marital Status

C. Numerical Aptitude

D. Professional Attitude

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36.
The data collected from observation and survey research methods are

A. Primary Data

B. Secondary Data

C. All of the above

D. None of these

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37.
Following is the information about the employees in an organisation in various age groups. Compute range and coefficient of range.

Class (Years) Number of Employees

56-60 7

61-65 16

66-70 39

71-75 28

76-80 10

A. 22, 1.02

B. 23, 0.12

C. 24, 0.1765

D. None of these

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38.
A rank correlation coefficient is being calculated, using the formula $$R = 1 - \frac{{6\sum {d^2}}}{{n\left( {{n^2} - 1} \right)}}.$$ If Σd² = 50 and n = 10, R will (to 2 decimal places) be

A. -0.30

B. 0.63

C. 0.30

D. 0.70

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39.
Incorrect understandings, prestige bias, self interest, respondent's inability are the examples of

A. compiling errors

B. response error

C. non-response error

D. publication error

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40.
Given is the following distribution of two variables x and y:

x : 1 2 3 4 5

y : 3 4 5 6 7

The standard deviation of y is

A. Same as standard deviation of x

B. (the standard deviation of x) × 2

C. (the standard deviation of x) + 2

D. (the standard deviation of x) - 2

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1 2 3 4 5 6 7 8 9 10

Class (Years)	Number of Employees
56-60	7
61-65	16
66-70	39
71-75	28
76-80	10

Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

31. X measures Wages in Rupees

Answer & Solution

32. Which of the following relation is correct?

Answer & Solution

33. The probable error of the coefficient of correlation (r) is calculated by which one of the following formulae?

Answer & Solution

34. "Controlled Group" is a term used in:

Answer & Solution

35. Which of the following variables cannot be expressed in quantitative terms?

Answer & Solution

36. The data collected from observation and survey research methods are

Answer & Solution

37. Following is the information about the employees in an organisation in various age groups. Compute range and coefficient of range. Class (Years) Number of Employees 56-60 7 61-65 16 66-70 39 71-75 28 76-80 10

Answer & Solution

38. A rank correlation coefficient is being calculated, using the formula $$R = 1 - \frac{{6\sum {d^2}}}{{n\left( {{n^2} - 1} \right)}}.$$ If Σd2 = 50 and n = 10, R will (to 2 decimal places) be

Answer & Solution

39. Incorrect understandings, prestige bias, self interest, respondent's inability are the examples of

Answer & Solution

40. Given is the following distribution of two variables x and y: x : 1 2 3 4 5 y : 3 4 5 6 7 The standard deviation of y is

Answer & Solution

Read More Section(Business Statistics and Research Methods)

31.
X measures Wages in Rupees

32.
Which of the following relation is correct?

33.
The probable error of the coefficient of correlation (r) is calculated by which one of the following formulae?

34.
"Controlled Group" is a term used in:

35.
Which of the following variables cannot be expressed in quantitative terms?

36.
The data collected from observation and survey research methods are

37.
Following is the information about the employees in an organisation in various age groups. Compute range and coefficient of range.

Class (Years) Number of Employees

56-60 7

61-65 16

66-70 39

71-75 28

76-80 10

38.
A rank correlation coefficient is being calculated, using the formula $$R = 1 - \frac{{6\sum {d^2}}}{{n\left( {{n^2} - 1} \right)}}.$$ If Σd² = 50 and n = 10, R will (to 2 decimal places) be

39.
Incorrect understandings, prestige bias, self interest, respondent's inability are the examples of

40.
Given is the following distribution of two variables x and y:

x : 1 2 3 4 5

y : 3 4 5 6 7

The standard deviation of y is