
Concept explainers
A box contains 3 marbles: 1 red, 1 green, and 1 blue. Consider an experiment that consists of taking 1 marble from the box and then replacing it in the box and drawing a second marble from the box. Describe the

To find: The sample space of given experiment with replacement and without
replacement.
Answer to Problem 2.1P
The sample space with replacement
={(R,R),(R,G),(R,B),(G,G),(G,R),(G,B),(B.,B),(B,R),(B,G)}
The sample space without replacement ={(R,G),(R,B),(G,R),(G,B),(B,R),(B,G)}
Explanation of Solution
Given information:
Consider box contains three marbles. They are 1 Red marble (R) , 1 Green marble (G) , 1
Blue marble (B) .
Calculation:
Sample space is the set of all possible outcomes of a random experiment.
Consider the experiment of drawing two marbles one after another with replacement.
Total number of outcomes =32
Then, the sample space is given by
={(R,R),(R,G),(R,B),(G,G),(G,R),(G,B),(B.,B),(B,R),(B,G)}
Consider the experiment of drawing two marbles one after another without replacement.
Total number of outcomes =3×2=6
Then, the sample space is given by ={(R,G),(R,B),(G,R),(G,B),(B,R),(B,G)}
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