Statistics MCQs
Statistics MCQs cover probability, sampling, hypothesis testing, correlation, regression, and data interpretation. Ideal for CSS, NTS, PMS, GAT, and university exams, they boost conceptual understanding, analytical skills, and real-world statistical application.
Q: Sampling method giving equal chance to all
A) Quota sampling
B) Judgement sampling
C) Convenience sampling
D) Random sampling
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Correct Answer: D
Explanation: Random sampling ensures each member has an equal chance of selection.
Q: An event certain to occur has a probability of
A) 0.5
B) 0
C) 1
D) Depends on sample
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Correct Answer: C
Explanation: A certain event has probability 1.
Q: Dispersion is zero when
A) All values are different
B) All values are zero
C) All values are negative
D) All values are equal
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Correct Answer: D
Explanation: When values are equal, thereβs no variation, so dispersion is zero.
Q: The area under the normal curve equals
A) Ο
B) 1
C) 2
D) 0.5
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Correct Answer: B
Explanation: The total area under the normal distribution curve is always 1.
Q: Central Limit Theorem states the sampling distribution of the sample mean approaches normality as
A) Mean changes
B) Population increases
C) Sample size decreases
D) Sample size increases
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Correct Answer: D
Explanation: As sample size increases, the distribution of the sample mean becomes normal.