Listed below are the number of books borrowed from a library by $8$ individuals.

a. What is the mean of the number of books borrowed?
b. What is the median of the number of books borrowed?

• A. $\bar{x}=6.4$ books$\tilde{x}=5.1$ books
• B. $\bar{x}=5.1$ books$\tilde{x}=4.5$ books
• C. $\bar{x}=5.1$ books$\tilde{x}=4.0$ books
• D. $\bar{x}=3.8$ books$\tilde{x}=5.9$ books

Answer: (C)