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: Data with equal spacing and no true zero is
A) Interval
B) Ordinal
C) Nominal
D) Ratio
✅ Correct Answer: A
Explanation: Interval data, like temperature in Celsius, lacks a true zero.
Q: Two events are independent if
A) Their sum is 1
B) One affects the other
C) One does not affect the other
D) Both are equal
✅ Correct Answer: C
Explanation: Independence means the occurrence of one event does not affect the other.
Q: Boxplots help identify
A) Probabilities
B) Mean
C) Central tendency
D) Outliers and spread
✅ Correct Answer: D
Explanation: Boxplots display the median, quartiles, and possible outliers in a dataset.
Q: A 95% confidence level implies that
A) Results are always correct
B) 95% of all samples will contain the true parameter
C) Mean is known
D) Hypothesis is correct
✅ Correct Answer: B
Explanation: It means 95 out of 100 similarly constructed intervals would include the true parameter.
Q: A high standard deviation means data is
A) Close to mean
B) Negative
C) Normally distributed
D) Highly variable
✅ Correct Answer: D
Explanation: High standard deviation indicates greater spread in the dataset.