Page 47 - Probability Demystified

36 CHAPTER 2 Sample Spaces

Summary

Two devices can be used to represent sample spaces. They are tree diagrams
and tables.
A tree diagram can be used to determine the outcome of a probability
experiment. A tree diagram consists of branches corresponding to the
outcomes of two or more probability experiments that are done in sequence.
Sample spaces can also be represented by using tables. For example, the
outcomes when selecting a card from an ordinary deck can be represented by
a table. When two dice are rolled, the 36 outcomes can be represented by
using a table. Once a sample space is found, probabilities can be computed
for specific events.

CHAPTER QUIZ

1. When a coin is tossed and then a die is rolled, the probability of
getting a tail on the coin and an odd number on the die is
1
a.
2
1
b.
4
3
c.
4
1
d.
12

2. When a coin is tossed and a die is rolled, the probability of getting a
head and a number less than 5 on the die is

1
a.
3
2
b.
3
1
c.
2
5
d.
6