A pet shop sells dogs, cats and piranhas.  There are 24 animals for sale, out of which 10 are cats, and the remainder is equally split between dogs and piranhas. If an animal is chosen at random by the first customer who walks in, find the probability of choosing: 1] a dog 2] a cat 3] If the choice is a piranha and a young worker reaches into the tank where the piranhas are kept, how likely is it the worker will be seriously harmed?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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A pet shop sells dogs, cats and piranhas.  There are 24 animals for sale, out of which 10 are cats, and the remainder is equally split between dogs and piranhas. If an animal is chosen at random by the first customer who walks in, find the probability of choosing:

1] a dog

2] a cat

3] If the choice is a piranha and a young worker reaches into the tank where the piranhas are kept, how likely is it the worker will be seriously harmed? 

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