MATHEMATICS · Multi-part · AP · AP Statistics · Probability Random Variables Distributions · Probability Random Variables Distributions
Problem
An urn contains 5 red, 4 white and 3 blue balls. Three balls are drawn successively without replacement.
(a) Calculate the probability that at least one of the three balls drawn is white.
(b) Given that at least one of the three balls drawn is white, calculate the probability that exactly two of the balls drawn are blue.