4. | Basic Computation: Addition Rule Given P(A) = 0.7 and P(B) = 0.4: (a) Can events A and B be mutually exclusive? Explain. (b) If P(A and B) = 0.2, compute P(A or B). 5. | Basic Computation: Multiplication Rule Given P(A) = 0.2 and P(B) = 0.4: (a) If A and B are independent events, compute P(A and B). (b) If P(A | B) = 0.1, compute P(A and B). 6. Basic Computation: Multiplication Rule Given P(A) = 0.7 and P(B) = 0.8: (a) If A and B, are independent events, compute P(A and B). (b) If P(BIA) = 0.9, compute P(A and B). 7. | Basic Computations: Rules of Probability Given P(A) = 0.2. P(B) = 0.5.

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Please please answer number 4 and 6. Make sure to show work! Thank you!
### Basic Computation: Probability Rules

#### 4. Basic Computation: Addition Rule
Given \(P(A) = 0.7\) and \(P(B) = 0.4\):
- (a) Can events \(A\) and \(B\) be mutually exclusive? Explain.
- (b) If \(P(A \text{ and } B) = 0.2\), compute \(P(A \text{ or } B)\).

#### 5. Basic Computation: Multiplication Rule
Given \(P(A) = 0.2\) and \(P(B) = 0.4\):
- (a) If \(A\) and \(B\) are independent events, compute \(P(A \text{ and } B)\).
- (b) If \(P(A | B) = 0.1\), compute \(P(A \text{ and } B)\).

#### 6. Basic Computation: Multiplication Rule
Given \(P(A) = 0.7\) and \(P(B) = 0.8\):
- (a) If \(A\) and \(B\) are independent events, compute \(P(A \text{ and } B)\).
- (b) If \(P(B | A) = 0.9\), compute \(P(A \text{ and } B)\).

#### 7. Basic Computations: Rules of Probability
Given \(P(A) = 0.2\), \(P(B) = 0.5\), \(P(A | B) = 0.3\):
- (a) Compute \(P(A \text{ and } B)\).
- (b) Compute \(P(A \text{ or } B)\).

#### 8. Basic Computation: Rules of Probability
Given \(P(A^\text{c}) = 0.8\), \(P(B) = 0.3\), \(P(B | A) = 0.2\):
- (a) Compute \(P(A \text{ and } B)\).
- (b) Compute \(P(A \text{ or } B)\).

### Explanation of Probability Calculations
- **Addition Rule**: For any two events \(A\) and \(B\):
  \[
  P(A \text{ or } B) = P(A) + P(B
Transcribed Image Text:### Basic Computation: Probability Rules #### 4. Basic Computation: Addition Rule Given \(P(A) = 0.7\) and \(P(B) = 0.4\): - (a) Can events \(A\) and \(B\) be mutually exclusive? Explain. - (b) If \(P(A \text{ and } B) = 0.2\), compute \(P(A \text{ or } B)\). #### 5. Basic Computation: Multiplication Rule Given \(P(A) = 0.2\) and \(P(B) = 0.4\): - (a) If \(A\) and \(B\) are independent events, compute \(P(A \text{ and } B)\). - (b) If \(P(A | B) = 0.1\), compute \(P(A \text{ and } B)\). #### 6. Basic Computation: Multiplication Rule Given \(P(A) = 0.7\) and \(P(B) = 0.8\): - (a) If \(A\) and \(B\) are independent events, compute \(P(A \text{ and } B)\). - (b) If \(P(B | A) = 0.9\), compute \(P(A \text{ and } B)\). #### 7. Basic Computations: Rules of Probability Given \(P(A) = 0.2\), \(P(B) = 0.5\), \(P(A | B) = 0.3\): - (a) Compute \(P(A \text{ and } B)\). - (b) Compute \(P(A \text{ or } B)\). #### 8. Basic Computation: Rules of Probability Given \(P(A^\text{c}) = 0.8\), \(P(B) = 0.3\), \(P(B | A) = 0.2\): - (a) Compute \(P(A \text{ and } B)\). - (b) Compute \(P(A \text{ or } B)\). ### Explanation of Probability Calculations - **Addition Rule**: For any two events \(A\) and \(B\): \[ P(A \text{ or } B) = P(A) + P(B
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