1. MORAN COBEÑA FERNANDO PIN-S-NO-4-4
Assignment 5 Calculating the Probability
• A box contains two blue marbles and three red ones. Two marbles are
drawn randomly without replacement. Refer to the blue marbles
as B1 and B2 and the red ones as R1, R2, and R3.
2.
1. List the outcomes in the sample space.
2. Determine the probability of observing each of the following
events:
(i) Drawing 2 blue marbles
P(a) = 2/5 P(a) = 0.40
P(a) = 40%
(ii) Drawing 1 red marble and 1 blue marble
P(a) = A U B = 1/5 + 1/5 = 2/5 = 0.40 = 40%
(iii) Drawing 2 red marbles
P(a) = 2/5 P(a) = 0.40
P(a) = 40%