## Question

The probability that at least one of *A* and *B* occurs is 0.6. If *A* and *B* occur simultaneously with probability 0.3, then *P*(*A*’) + *P*(*B*’) is

### Solution

1.1

When have *P*(*A* ∪ *B*) = 0.6 and *P*(*A* ∩ *B*) = 0.3. we know that

* P*(*A*) + *P*(*B*) = *P*(*A* ∪ *B*) + *P*(*A* ∩ *B*) = 0.6 + 0.3 = 0.9

#### SIMILAR QUESTIONS

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