A bag contains balls of three different colours: red
MATHEMATICS · Subjective · AP · AP Statistics · Probability Random Variables Distributions · Probability Random Variables Distributions
Problem
A bag contains balls of three different colours: red, green and blue. When one ball is drawn at random, the probability of getting a red ball is 0.4 and the probability of getting a green ball is 0.35.
(i) Calculate the probability of drawing a blue ball.
(ii) What type of event is "drawing a ball that is not blue"? Justify your answer.
(iii) Find the probability of the event described in part (ii) and verify that it satisfies the complement rule.