Page 192 - Probability Demystified
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CHAPTER 10 Simulation 181
EXAMPLE: A box contains 3 one dollar bills, 2 five dollar bills, and 1 ten
dollar bill. A person selects a bill at random. Find the expected value of the
bill. Perform the experiment 20 times.
SOLUTION:
A die can be rolled. If a 1, 2, or 3 comes up, assume the person wins $1. If a
4 or 5 comes up, assume the person wins $5. If a 6 comes up, assume the
person wins $10.
Trial Number Amount
1 3 $1
2 6 $10
3 3 $1
4 6 $10
5 4 $5
6 1 $1
7 6 $10
8 4 $5
9 4 $5
10 3 $1
11 6 $10
12 1 $1
13 2 $1
14 5 $5
15 5 $5
16 3 $1
17 1 $1
18 2 $1
19 6 $10
20 3 $1
The average of the amount won is $4.25.
