I have a group of dogs (3 brown male, 2 brown female, 4 white male, 4 white female, 5 black male, 4 black female)(adsbygoogle = window.adsbygoogle || []).push({});

What is the probability to

1. select a female brown dog ?

2. select a female, given that is a brown dog ?

3. select a brown given that is a female dog ?

Thank you.

I have tried

1. P(BrB)=freq of female brown/total dog number=1/11

2. P(F , Br)=P(female brown)/P(brown)=1/11 / 5/22 = 2/5

3. P(Br, F) = P(female brown)/P(female)=1/11 / 10/22 = 1/5

But my answers are different from those in my book

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# Conditional probability: selecting one from a set

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