A pond has 50 fish in total: 25 catfish, 10 trout, and 15 bass. a.) What is the probability of catching 3 trout? b.) What is the probability of catching the 3 types of fish in alphabetical order?
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Originally Posted by baseball_girl A pond has 50 fish in total: 25 catfish, 10 trout, and 15 bass. a.) What is the probability of catching 3 trout? b.) What is the probability of catching the 3 types of fish in alphabetical order? a) $\displaystyle \frac{10}{50} \cdot \frac{9}{49} \cdot \frac{8}{48}$ b) $\displaystyle \frac{25}{50} \cdot \frac{15}{49} \cdot \frac{10}{48}$ A tree diagram will make this clearer if you don't see why.
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