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

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81.
The geometric mean of 1, 2 and 4 is

A. 1

B. 2

C. 4

D. None of the above

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82.
The harmonic mean of the following data 6, 10, 15 and 20 will be

A. 6.69

B. 8.69

C. 10.43

D. 12.43

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83.
If a chi-square test is to be performed on a contingency table with 3 rows and 4 columns, how many degrees of freedom should be used?

A. 6

B. 12

C. 8

D. 9

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84.
Karl Pearson's co-efficient of correlation between two variables is:

A. the product of their standard deviations

B. the square root of the product of their regression coefficients

C. the co-variance between the variables

D. none of the above

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85.
The values of mean, median and mode are the same

A. In a positively skewed distribution

B. In a negatively skewed distribution

C. In a symmetric distribution

D. All of them

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86.
Under which theoretical distribution, the quartile deviation is 2/3 of Standard Deviation?

A. Binomial Distribution

B. Normal Distribution

C. Poisson Distribution

D. Random Distribution

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87.
. . . . . . . . is known as the 'ideal' formula for constructing index numbers.

A. Fisher's Ideal Index

B. Laspeyre's Index

C. Paasche's Index

D. None of these

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88.
Which is used when sample size is small?

A. t-test

B. mode

C. F-test

D. none of these

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89.
The arithmetic mean of 9, 17, 91 is

A. 17

B. 91

C. 9

D. 39

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90.
In . . . . . . . ., a hypothesis should explain all sufficient facts needed to understand the problem.

A. empirical reference

B. logical reference

C. Both A and B

D. Neither A nor B

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

81. The geometric mean of 1, 2 and 4 is

Answer & Solution

82. The harmonic mean of the following data 6, 10, 15 and 20 will be

Answer & Solution

83. If a chi-square test is to be performed on a contingency table with 3 rows and 4 columns, how many degrees of freedom should be used?

Answer & Solution

84. Karl Pearson's co-efficient of correlation between two variables is:

Answer & Solution

85. The values of mean, median and mode are the same

Answer & Solution

86. Under which theoretical distribution, the quartile deviation is 2/3 of Standard Deviation?

Answer & Solution

87. . . . . . . . . is known as the 'ideal' formula for constructing index numbers.

Answer & Solution

88. Which is used when sample size is small?

Answer & Solution

89. The arithmetic mean of 9, 17, 91 is

Answer & Solution

90. In . . . . . . . ., a hypothesis should explain all sufficient facts needed to understand the problem.

Answer & Solution

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81.
The geometric mean of 1, 2 and 4 is

82.
The harmonic mean of the following data 6, 10, 15 and 20 will be

83.
If a chi-square test is to be performed on a contingency table with 3 rows and 4 columns, how many degrees of freedom should be used?

84.
Karl Pearson's co-efficient of correlation between two variables is:

85.
The values of mean, median and mode are the same

86.
Under which theoretical distribution, the quartile deviation is 2/3 of Standard Deviation?

87.
. . . . . . . . is known as the 'ideal' formula for constructing index numbers.

88.
Which is used when sample size is small?

89.
The arithmetic mean of 9, 17, 91 is

90.
In . . . . . . . ., a hypothesis should explain all sufficient facts needed to understand the problem.