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# S2 'given that' questions watch

1. I did s1 such a long time ago so im no good at questions like these. I really don't get them. Help with part c.

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2. (Original post by cooldudeman)
I did s1 such a long time ago so im no good at questions like these. I really don't get them. Help with part c.

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Prob(A given B)=Prob(A and B) divided by {Prob(B) and in the above example, the Prob that the mosquito survives 3 days and at least another 5 days is simply the prob that it survives at least 8 days. So you want Prob(survives 8 days or more) divided by Prob(It survives 3 days)

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