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**1. Given P(AnB)=0.6 and P(A|B)=0.10, find P(B)**

**2. P(A|B)=P(AnB)/P(B)**

**3. I plugged in the numbers in the formula but keep getting that P(B) is 6.... which is wrong since P cannot be greater than 0. Am I doing something wrong?**

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- Thread starter e3027
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Mark44

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P(A|B)=P(AnB)/P(B)

When you have P(B) isolated, substitute the values you have for the two other quantities.

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That's what I did.

P(B)=P(AnB)/P(A|B)=0.6/0.1=6........but this makes no sense to me.

P(B)=P(AnB)/P(A|B)=0.6/0.1=6........but this makes no sense to me.

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Mark44

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