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 error is caused by
A) Population fluctuation
B) Sample fluctuation
C) Researcher bias
D) Non-response bias
✅ Correct Answer: B
Explanation: Sampling error occurs when a sample does not perfectly represent the population.
Q: Data measured in units such as time, weight, and length is
A) Nominal
B) Ordinal
C) Interval
D) Ratio
✅ Correct Answer: D
Explanation: Ratio data has a true zero and allows comparisons like twice as much or half.
Q: A p-value less than 0.05 typically leads to
A) Increasing sample size
B) Retesting data
C) Rejecting H0
D) Accepting H0
✅ Correct Answer: C
Explanation: A p-value < 0.05 suggests strong evidence against the null hypothesis.
Q: A percentile shows
A) Shape of distribution
B) Range of data
C) Total data
D) Rank of value in data
✅ Correct Answer: D
Explanation: Percentiles indicate the relative standing of a value within the dataset.
Q: A Z-score of 0 means the value is
A) Above average
B) Below average
C) At the mean
D) An outlier
✅ Correct Answer: C
Explanation: A Z-score of 0 indicates that the value equals the mean of the data.