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

21.
The central value of a serially arranged series is known as

A. Arithmetical mean

B. Mode

C. Median

D. Quartile

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22.
In comparison of secondary data, the primary data are

A. less reliable

B. more reliable

C. are equally reliable

D. None of these

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23.
There will be positive correlation in X and Y, if

A. both the variables are varying in the same direction

B. variables are varying in opposite direction

C. there is no certain trend of changes in both variables

D. None of the above

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24.
Classification of data may be

A. Geographical

B. Qualitative

C. Quantitative

D. All of the above

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25.
Assertion (A) Standard deviation is independent of change of origin.
Reason (R) The value of standard deviation remains the same, if in a series each the observation is increased or decreased by a constant quantity.

A. Both (A) and (R) are true

B. Both (A) and (R) are true, but (R) is not the correct explanation of (A)

C. Both (A) and (R) are false

D. (A) is true, but (R) is false

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26.
An investigator collects data himself or through his agents by contacting and interviewing students and the same data has been collected by the student union and the investigator obtains the data from the students union officer.

A. Data collected is regarded as primary and secondary data respectively

B. Data collected is regarded as secondary and primary data respectively

C. In both the cases the data collected is known as Primary data

D. In both the cases the data collected is known as secondary data

E. As per the interpretation of the investigator the primary or secondary nature of data so collected is to be decided

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27.
In this the value of rank correlation coefficient will be

Rank X 5 3 4 8 2 1 7 10 6 9

Rank Y 3 7 5 9 2 4 1 10 8 6

A. +0.52

B. +0.62

C. +0.42

D. +0.72

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28.
The mean of 15 numbers was found to be 15. If two numbers 18 and 12 are taken out, then the mean of remaining numbers will be

A. 10

B. 12

C. 15

D. 25

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29.
To calculate the arithmetic mean, there should be class differences

A. Exclusive

B. Unequal

C. Equal

D. All the above

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30.
The absolute value of the difference between an unbiased point estimate and the corresponding population parameter is known as a

A. Population error

B. Standard error

C. Sampling error

D. None of the above

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

21. The central value of a serially arranged series is known as

Answer & Solution

22. In comparison of secondary data, the primary data are

Answer & Solution

23. There will be positive correlation in X and Y, if

Answer & Solution

24. Classification of data may be

Answer & Solution

25. Assertion (A) Standard deviation is independent of change of origin. Reason (R) The value of standard deviation remains the same, if in a series each the observation is increased or decreased by a constant quantity.

Answer & Solution

26. An investigator collects data himself or through his agents by contacting and interviewing students and the same data has been collected by the student union and the investigator obtains the data from the students union officer.

Answer & Solution

27. In this the value of rank correlation coefficient will be Rank X 5 3 4 8 2 1 7 10 6 9 Rank Y 3 7 5 9 2 4 1 10 8 6

Answer & Solution

28. The mean of 15 numbers was found to be 15. If two numbers 18 and 12 are taken out, then the mean of remaining numbers will be

Answer & Solution

29. To calculate the arithmetic mean, there should be class differences

Answer & Solution

30. The absolute value of the difference between an unbiased point estimate and the corresponding population parameter is known as a

Answer & Solution

Read More Section(Business Statistics and Research Methods)

21.
The central value of a serially arranged series is known as

22.
In comparison of secondary data, the primary data are

23.
There will be positive correlation in X and Y, if

24.
Classification of data may be

25.
Assertion (A) Standard deviation is independent of change of origin.
Reason (R) The value of standard deviation remains the same, if in a series each the observation is increased or decreased by a constant quantity.

26.
An investigator collects data himself or through his agents by contacting and interviewing students and the same data has been collected by the student union and the investigator obtains the data from the students union officer.

27.
In this the value of rank correlation coefficient will be

Rank X 5 3 4 8 2 1 7 10 6 9

Rank Y 3 7 5 9 2 4 1 10 8 6

28.
The mean of 15 numbers was found to be 15. If two numbers 18 and 12 are taken out, then the mean of remaining numbers will be

29.
To calculate the arithmetic mean, there should be class differences

30.
The absolute value of the difference between an unbiased point estimate and the corresponding population parameter is known as a