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

A.0.30

B.0.60

C.1

D.0.40

I think C am I correct?

- Help Math -
**Steve**, Sunday, December 30, 2012 at 7:28pmsurely 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)

- Help Math -
**Chrissy**, Sunday, December 30, 2012 at 7:51pmOk thank you

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