The probability a graduate from Mathville high school will attend the Mathtabulous University is 1/4 . The probability that a student will stay in residence first year (at any university) is 3/13 . The probability that a student will stay in residence or attend Mathtabulous U is 11/26 .

What is the probability that a student will attend Mathtabulous U and stay in residence?

A bag contains 5 blue chips, 4 red chips, and 3 green chips. Three chips are drawn randomly without replacement.

a. Determine the probability of drawing 3 red chips.

b. Determine the probability of drawing exactly 2 red chips.