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: In hypothesis testing, the null hypothesis represents
A) An error
B) A bias
C) A claim to be tested
D) An alternative
✅ Correct Answer: C
Explanation: The null hypothesis is the assumption we attempt to test or disprove.
Q: The shape of a distribution where the mean equals the median and mode
A) Left-skewed
B) Symmetrical
C) U-shaped
D) Right-skewed
✅ Correct Answer: B
Explanation: When all measures of central tendency are equal, the distribution is symmetrical.
Q: An example of discrete data
A) Number of students
B) Temperature
C) Height
D) Weight
✅ Correct Answer: A
Explanation: Discrete data represents countable values, like number of students.
Q: The level of measurement that categorizes data without order
A) Ordinal
B) Nominal
C) Ratio
D) Interval
✅ Correct Answer: B
Explanation: Nominal scale is used for labeling variables without any quantitative value.
Q: A test statistic follows which type of distribution in a Z-test
A) Poisson
B) Normal
C) Binomial
D) Chi-square
✅ Correct Answer: B
Explanation: A Z-test uses the standard normal distribution under large sample assumptions.