A and B are mutually exclusive events. P(A) = 0.60 and P(B) = 0.30. What is P(A or B)?A.0.90B.0.15C.0.18D.0.72

1. Break Down the Problem

We need to find the probability of either event A or event B occurring, given that they are mutually exclusive events. This means that they cannot occur at the same time.

2. Relevant Concepts

For mutually exclusive events, the probability of either event A or event B occurring can be calculated using the formula: $P(A \text{ or } B) = P(A) + P(B)$

3. Analysis and Detail

Given:

• $P(A) = 0.60$
• $P(B) = 0.30$

Now, we will substitute the values into the formula: $P(A \text{ or } B) = P(A) + P(B) = 0.60 + 0.30$

4. Verify and Summarize

Calculating the sum: $P(A \text{ or } B) = 0.90$

This matches one of the answer options.

Final Answer

The probability of $P(A \text{ or } B)$ is 0.90, which corresponds to option A.