Mendenhall, W., Beaver, R. J., & Beaver, B. M. (2013). Introduction to probability and statistics (14th ed.). Cengage Learning.

Mendenhall, William, Robert J. Beaver, and Barbara M. Beaver. Introduction to Probability and Statistics. 14th ed. New Delhi: Cengage Learning, 2013.

Mendenhall, William, et al. Introduction to Probability and Statistics. 14th ed. Cengage Learning, 2013.