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Notes Over 12.5Probability of Independent EventsProbability of Independent Events1. You are playing a game with 2 numbered cubes. Find the probability of rolling a sum of 8 on the first roll and doubles on the second roll.
5
36
6
366 216
5 .0230
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Notes Over 12.5Probability of Independent EventsProbability of Independent Events2. Find the probability of rolling an even sum on the first roll and a sum greater than 8 on the second roll.
18
36
10
3618 36
5 .1390
5
2
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Notes Over 12.5Using a Complement to Find a ProbabilityUsing a Complement to Find a Probability3. The probability of selecting a rotten apple from a basket of apples is 12%. What is the probability of selecting 2 good apples and 1 rotten apple.
AA'A'A and A' and A' PPPP
88.0 88.0 12.0 .0930
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Notes Over 12.5
4. The probability of selecting a rotten apple from a basket of apples is 12%. What is the probability of selecting 3 rotten apples.
AAAA andA andA PPPP
12.0 .00170
Using a Complement to Find a ProbabilityUsing a Complement to Find a Probability
12.0 12.0
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Notes Over 12.5
5. A gumball machine contains 100 gumballs, twenty of each of the colors red, blue, green, white, and yellow. What is the probability of getting a blue gumball then a white gumball.
ABAB andA PPP
100
20
99
20
99
4
5.0400
Probability of Dependent EventsProbability of Dependent Events
4
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Notes Over 12.5
6. A gumball machine contains 100 gumballs, twenty of each of the colors red, blue, green, white, and yellow. What is the probability of getting a green, then red, then blue gumball.
ABAB andA PPP
100
20
99
20
4851
40
5.0080
Probability of Dependent EventsProbability of Dependent Events
98
20
10
49
2
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98
18
Notes Over 12.5
7. A gumball machine contains 100 gumballs, twenty of each of the colors red, blue, green, white, and yellow. What is the probability of getting a blue, then blue, then blue gumball.
ABAB andA PPP
100
20
99
19
2695
19
50.0070
Probability of Dependent EventsProbability of Dependent Events
10
49
9
5 11
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Notes Over 12.5
8. A gumball machine contains 100 gumballs, twenty of each of the colors red, blue, green, white, and yellow. What is the probability of getting a yellow, then another yellow gumball.
ABAB andA PPP
100
20
99
19
495
19
5.0380
Probability of Dependent EventsProbability of Dependent Events
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Notes Over 12.5