GRE Subject 2026 Practice Test Maths Probability Theory Free Quiz 2

11. What distribution models events in a fixed interval?

A. Binomial B. Poisson C. Normal D. Exponential

12. What distribution has a bell-shaped curve?

A. Normal B. Binomial C. Poisson D. Exponential

13. What measures joint variability of two random variables?

A. Variance B. Covariance C. Correlation D. Standard deviation

14. What is a normalized measure of linear dependence?

A. Correlation coefficient B. Covariance C. Variance D. Regression

15. What is a random walk?

A. Deterministic B. Smooth C. Random walk D. Periodic

16. What property states the future depends only on the present?

A. Independent B. Dependent C. Conditional D. Markov

17. What inequality bounds the probability of deviation from the mean?

A. Chebyshev B. Markov C. Jensen D. Cauchy-Schwarz

18. What inequality bounds the probability that a non-negative variable exceeds a threshold?

A. Chebyshev B. Jensen C. Markov D. Cauchy-Schwarz

19. What inequality bounds the inner product of two vectors?

A. Jensen B. Cauchy-Schwarz C. Markov D. Chebyshev

20. What function is used for discrete random variables?

A. Probability generating B. Moment generating C. Characteristic D. Cumulative