An unfair coin with probability of heads as .32 is flipped.

Question

An unfair coin with probability of heads is .32 is flipped. if the flip is heads, a student is selected at random from a class of 12 boys and 10 girls. otherwise, a student from 13 boys and 9 girls is selected. probability of a girl selected is what?

Answer 1

I'll get you started:

 

P(G)=P(HG)+P(TG)

 

       =P(H)P(G₁) + P(T)P(G₂)   

 

You know P(H) and P(T). Calculate each P(G) based on the individual group's B/G makeup.