Business Statistics and Research Methods MCQ Questions and Solutions with Explanations

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

11.
Co-variance between two variables is:

A. The average of the product of deviations taken from their averages

B. A is further divided by the product of their standard deviations

C. A is further divided by the product of their arithmetic averages

D. None of the above

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12.
For symmetrical distribution which of the following is true?

A. Median - Q₁ = Q₃ - Median

B. Mode - Q₁ = Q₃ - Median

C. Mean - Q₁ = Q₃ - Mode

D. None of the above

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13.
When two regression coefficients bear same algebraic signs, then correlation coefficient is:

A. Positive

B. Negative

C. According to two signs

D. Zero

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14.
F-test is used to test the significance of the differences between/among:

A. Two sample mean

B. More than two samples mean

C. Variance of two samples

D. Both B and C

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15.
Which of the following is an assumption of one-way ANOVA comparing samples from three or more experimental treatments?

A. The samples associated with each population are randomly selected and are independent from all other samples

B. The response variable within each of the k populations have equal variances

C. All the response variables within the k populations follow a normal distribution

D. All of the above

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16.
Which of the following measure of central tendency may not be contained in the observation?

A. Mean

B. Median

C. Mode

D. All of these

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17.
The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is:

A. Maximum

B. Minimum

C. Zero

D. Positive

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18.
The measures used to calculate the variation present among the observations in the unit of the variable is called:

A. Relative measures of dispersion

B. Coefficient of skewness

C. Absolute measures of dispersion

D. Coefficient of variation

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19.
From the following data, calculate coefficient of correlation.

X 1 2 3 4 5

Y 10 20 30 40 50

A. 0.9

B. 0.8

C. 0.6

D. 10.1

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20.
If the ranks of two attributes in a sample are as follows

R₁ 1 2 3 4 5

R₂ 5 4 3 2 1

Then the rank correlation between the two will be

A. 0

B. +1

C. -1

D. None of these

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

11. Co-variance between two variables is:

Answer & Solution

12. For symmetrical distribution which of the following is true?

Answer & Solution

13. When two regression coefficients bear same algebraic signs, then correlation coefficient is:

Answer & Solution

14. F-test is used to test the significance of the differences between/among:

Answer & Solution

15. Which of the following is an assumption of one-way ANOVA comparing samples from three or more experimental treatments?

Answer & Solution

16. Which of the following measure of central tendency may not be contained in the observation?

Answer & Solution

17. The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is:

Answer & Solution

18. The measures used to calculate the variation present among the observations in the unit of the variable is called:

Answer & Solution

19. From the following data, calculate coefficient of correlation. X 1 2 3 4 5 Y 10 20 30 40 50

Answer & Solution

20. If the ranks of two attributes in a sample are as follows R1 1 2 3 4 5 R2 5 4 3 2 1 Then the rank correlation between the two will be

Answer & Solution

Read More Section(Business Statistics and Research Methods)

11.
Co-variance between two variables is:

12.
For symmetrical distribution which of the following is true?

13.
When two regression coefficients bear same algebraic signs, then correlation coefficient is:

14.
F-test is used to test the significance of the differences between/among:

15.
Which of the following is an assumption of one-way ANOVA comparing samples from three or more experimental treatments?

16.
Which of the following measure of central tendency may not be contained in the observation?

17.
The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is:

18.
The measures used to calculate the variation present among the observations in the unit of the variable is called:

19.
From the following data, calculate coefficient of correlation.

X 1 2 3 4 5

Y 10 20 30 40 50

20.
If the ranks of two attributes in a sample are as follows

R₁ 1 2 3 4 5

R₂ 5 4 3 2 1

Then the rank correlation between the two will be