Posted by **Chrissy** on Sunday, December 30, 2012 at 7:24pm.

Events A and B are mutually exclusive. The probability of event A occurring is0.15; the probability of event B occurring is 0.45; what is the probability that A and B will occur?

A.0.30

B.0.60

C.1

D.0.40

I think C am I correct?

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**Steve**, Sunday, December 30, 2012 at 7:28pm
surely not. A probability of 1 means it must occur.

I think you have a typo anyway. If the events are mutually exclusive, then they **cannot** both happen. P(A&B)=0.

On the other hand, P(A or B) = P(A)+P(B) = 0.60, or (B)

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**Chrissy**, Sunday, December 30, 2012 at 7:51pm
Ok thank you

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