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: The number of observations divided by the number of classes gives
A) Class boundary
B) Class width
C) Frequency
D) Midpoint
Q: A scatter plot is best used to examine
A) Mean
B) Correlation
C) Frequency
D) Causation
Q: Confidence level of 95% means
A) Result is always accurate
B) Interval includes the true parameter in 95% of cases
C) 95% data is correct
D) 5% chance of error
Q: Coefficient of variation is calculated as
A) Standard deviation × Variance
B) Standard deviation/Mean
C) Mean/Standard deviation
D) Mean × Standard deviation
Q: If events A and B are mutually exclusive, their joint probability is
A) 0.5
B) 1
C) 0
D) Undefined