Statistics MCQs
Statistics MCQs serve as an essential tool for students, researchers, and exam candidates to understand and master the fundamentals of statistical analysis. This category features a rich set of multiple-choice questions covering topics such as probability, sampling, hypothesis testing, measures of central tendency and dispersion, correlation, regression, and data interpretation. These MCQs are ideal for test preparations including CSS, NTS, PMS, GAT, university entrance exams, and job recruitment tests where statistical knowledge is tested. The questions range from basic theory to practical problem-solving scenarios, allowing learners to evaluate and enhance their conceptual understanding. Practicing regularly not only strengthens your analytical skills but also prepares you to apply statistical techniques in real-world contexts. This category is particularly useful for students in social sciences, economics, business, and research-based programs. Improve your statistical thinking by solving our curated Statistics MCQs.
Q: Regression analysis is used to
A) Predict one variable from another
B) Find averages
C) Compare frequencies
D) Test medians
✅ Correct Answer: A
Explanation: Regression predicts the value of a dependent variable based on the independent one.
Q: A bell-shaped curve represents
A) Binomial distribution
B) Uniform distribution
C) Normal distribution
D) Skewed distribution
✅ Correct Answer: C
Explanation: The bell-shaped curve describes a normal distribution.
Q: Probability distribution of two dice sum equals 7
A) 1/12
B) 1/18
C) 1/36
D) 1/6
✅ Correct Answer: D
Explanation: There are 6 favorable outcomes out of 36 total, so the probability is 1/6.
Q: Mean is defined as the
A) Middle value
B) Difference
C) Average
D) Most frequent value
✅ Correct Answer: C
Explanation: Mean represents the average of a data set, calculated by dividing the sum by the number of values.
Q: Median identifies the
A) Central value
B) Repeated value
C) Greatest value
D) Least value
✅ Correct Answer: A
Explanation: Median is the middle value when data is arranged in ascending or descending order.
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.