To find the probability of \( P(A \text{ or } B) \), you can use the formula:
\[ P(A \text{ or } B) = P(A) + P(B) - P(A \text{ and } B) \]
Given values:
- \( P(A) = 0.60 \)
- \( P(B) = 0.25 \)
- \( P(A \text{ and } B) = 0.15 \)
Now, substitute the values into the formula:
\[ P(A \text{ or } B) = 0.60 + 0.25 - 0.15 \]
\[ P(A \text{ or } B) = 0.70 \]
Therefore, the probability of event A or event B occurring is \( 0.70 \) or \( 70\% \).
