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

Which of the following is primary data?
A. Data from a newspaper
B. Data collected by an investigator through direct interview
C. Data downloaded from a government website
D. Data taken from a published report
Answer: Option B
Solution (By JKSSB Mock Tests)
Primary data is originally collected firsthand for the specific research purpose. Direct interview is a primary method.

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Practice More Statistics Questions

Question #1
The SRS (Sample Registration System) provides data on:
A. Birth rate and death rate
B. Industrial output
C. Census population
D. Imports and exports

Correct Answer: Option A


Explanation:
SRS gives annual estimates of fertility and mortality indicators.

This question belongs to: Accountancy and Statistics Statistics
Question #2
If all observations are multiplied by a constant k, the geometric mean is multiplied by:
A. k
B. 1/k
C. k/n
D. k²

Correct Answer: Option A


Explanation:
GM of (kx) = k × GM of x, since GM(kx) = (kⁿ ∏x)^(1/n) = k (∏x)^(1/n).

This question belongs to: Accountancy and Statistics Statistics
Question #3
The probability of an event A is 0.2. The odds in favor of A are:
A. 5:1
B. 4:1
C. 1:5
D. 1:4

Correct Answer: Option D


Explanation:
Odds = P(A) : P(A') = 0.2 : 0.8 = 1:4.

This question belongs to: Accountancy and Statistics Statistics