please help with this Q; For a particular species of monkey...

Question

4.For a particular species of monkey, the odds against a monkey being born with either grey fur

or black eyes are 2:3. The probability of a money exhibiting only one of these traits is equal and

the probability of exhibiting both traits is 45%. What are the odds in favour of a monkey having

grey fur?

Answer 1

I answered the same question yesterday with different story!

The critical piece needed to answer the question is: P(G or B)=P(G)+P(B)-P(G and B).

With that hint I think you can answer the question.

2/5=8/20=2P(G)-9/20

17/20=2P(G)

P(G)=17/40

Odds 17:23