Which of the following is a source of primary data? MCQ with Answer and Explanation

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Which of the following is a source of primary data?

A. Data from an experiment designed by the investigator

B. Journal article

C. Census data

D. Annual report of RBI

Answer: Option A

Solution (By JKSSB Mock Tests)

Data generated from one's own experiment is primary data; the others are secondary sources.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

The probability of getting a sum of 7 when two dice are rolled is:

A. 1/36

B. 5/36

C. 6/36

D. 1/6

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Correct Answer: Option D

Explanation:
6 favorable pairs out of 36 = 6/36 = 1/6. Option D is also 6/36 but simplifies to 1/6. Use A.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Which of the following is a disadvantage of secondary data?

A. Cheaper to collect

B. Saves time

C. Readily available

D. May not fit the exact purpose of the study

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Correct Answer: Option D

Explanation:
Secondary data was collected for a different purpose, so it may not perfectly match the current research objective in terms of definitions, coverage, or time period.

This question belongs to: Accountancy and Statistics Statistics

Question #3

The empirical relationship between mean, median, and mode for a moderately skewed distribution is:

A. Median = (Mean + Mode)/2

B. Mean - Mode = 3(Mean - Median)

C. Mean = (Mode + Median)/2

D. Mode = 2Median - Mean

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Correct Answer: Option B

Explanation:
The empirical formula is Mean - Mode = 3(Mean - Median) or Mode = 3Median - 2Mean.

This question belongs to: Accountancy and Statistics Statistics

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