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: Mode refers to the
A) Most frequent value
B) Highest value
C) Mean value
D) Value with units
✅ Correct Answer: A
Explanation: Mode is the value that appears most frequently in a data set.
Q: Standard deviation measures
A) Central tendency
B) Frequency
C) Dispersion
D) Mean
✅ Correct Answer: C
Explanation: Standard deviation quantifies the amount of variation in a data set.
Q: Variance is the square of
A) Mode
B) Median
C) Mean
D) Standard deviation
✅ Correct Answer: D
Explanation: Variance measures dispersion and is calculated as the square of the standard deviation.
Q: Quartiles divide data into
A) Five parts
B) Two parts
C) Four parts
D) Three parts
✅ Correct Answer: C
Explanation: Quartiles split a ranked data set into four equal parts.
Q: Interquartile range is calculated as
A) Q3 - Q2
B) Q2 - Q1
C) Q4 - Q1
D) Q3 - Q1
✅ Correct Answer: D
Explanation: Interquartile range measures the spread of the middle 50% of values.