SOLUTION: There are 30 fish in a pond. We know that 10 of these fish are males, 4 of these males are salmon and there are 7 salmon in the pond. What is the probability that a randomly chosen

Algebra ->  Probability-and-statistics -> SOLUTION: There are 30 fish in a pond. We know that 10 of these fish are males, 4 of these males are salmon and there are 7 salmon in the pond. What is the probability that a randomly chosen      Log On


   

Question 474697: There are 30 fish in a pond. We know that 10 of these fish are males, 4 of these males are salmon and there are 7 salmon in the pond. What is the probability that a randomly chosen fish is a salmon, given that it is male?
1/3+2/15=7/15?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
There are 30 fish in a pond. We know that 10 of these fish are males, 4 of these males are salmon and there are 7 salmon in the pond. What is the probability that a randomly chosen fish is a salmon, given that it is male?
---
P(salmon } male) = P(salmon and male)/P(male) = (4/30)/(10/30) = 4/10
--
Ans: 4/10
===================
Cheers,
Stan H.