6.6. Practice question answers
Chapter 6 practice question answers
6.1. Sample Spaces and Probability
1. {1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T}
2. a. 
b. 
3. a. 
b. 
4. a. 
b. 
5. a. 
b. 
6.2. Mutually Exclusive Events and the Addition Rule
1. a. No
b. Yes
c. No
2. 
3. 40%
4. a. 
b. 
5. 0.5
6. a. 0.375
b. 0.55
c. 0.175
6.3. Probability Using Tree Diagrams and Combinations
1. a. 
b. 
2. a. 
b. 
3. a. 
b. 
c. 
4. a. ≈ 0.0036
b. ≈ 0.1291
c. ≈ 0.0619
d. ≈ 0.4474
5. a. ≈ 0.8831
b. ≈ 0.8144
6.4. Conditional Probability
1. 
2. a. 
b. 
c. 
3. a. 
b. 
4. 
5. 
6. a. 
b. 
c. 
6.5. Independent Events
1. No
2. Yes
3. 0.36
4. a. 
b. 
5. a. 
b. 
c. 
d. Yes
6. 0.50
