III
E
Outcomes and event probability
A number cube is rolled three times. An outcome is represented by a string of the sort OEE (meaning an odd number on the first roll, an even number on the
second roll, and an even number on the third roll). The 8 outcomes are listed in the table below. pote that each outcome has the same probability.
For each of the three events in the table, check the outcome(s) that are contained in the event. Then, in the last column, enter the probability of the event.
Event A: No odd numbers on the first
two rolls
Event B: An even number on both the
first and the last rolls
Event C: Two or more odd numbers
OEE
0
0
0
EOO
0
0
0
13
EEE
0
0
O
Outcomes
OOE
0
0
0
EEO OEO EOE
O
0
0
0
0
0
0
0
0
000
0
0
0
Probability
0
0
0
8
X
Espe