Which sampling method is MOST appropriate for collecting primary data from a heterogeneous population with distinct subgroups? MCQ with Answer and Explanation

Which sampling method is MOST appropriate for collecting primary data from a heterogeneous population with distinct subgroups?
A. Stratified random sampling
B. Simple random sampling
C. Convenience sampling
D. Snowball sampling
Answer: Option A
Solution (By JKSSB Mock Tests)
Stratified sampling divides the population into homogeneous subgroups (strata) and samples from each, ensuring representation of all key segments and improving precision for subgroup analysis.

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Practice More Statistics Questions

Question #1
An experiment consists of rolling a fair die. Event A = {2, 4, 6} and Event B = {3, 6}. What is P(A ∪ B)?
A. 5/6
B. 1/2
C. 1/3
D. 2/3

Correct Answer: Option D


Explanation:
A ∪ B = {2, 3, 4, 6}. Four favorable outcomes. P(A ∪ B) = 4/6 = 2/3.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Bayes' theorem is based on the concept of:
A. Conditional probability
B. Disjoint events
C. Joint probability only
D. Unconditional probability

Correct Answer: Option A


Explanation:
Bayes' theorem expresses the conditional probability P(A|B) in terms of P(B|A) and prior probabilities.

This question belongs to: Accountancy and Statistics Statistics
Question #3
The main purpose of classification of data is to:
A. Present data in rows and columns
B. Group homogeneous data to highlight similarities and patterns
C. Calculate measures of central tendency
D. Draw graphs

Correct Answer: Option B


Explanation:
Classification brings order to data by grouping similar items.

This question belongs to: Accountancy and Statistics Statistics