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(10 points) Answer the following questions: (a) (5 points) An animal shelter has

ID: 3369020 • Letter: #

Question

(10 points) Answer the following questions: (a) (5 points) An animal shelter has a 65% adoption rate for puppies. Of all puppies in the shelter, live to be 7 years or older. Of the puppies who are adopted, 80% live to be 7 years or older. What is probability that a randomly selected puppy in the shelter will get adopted and live 7 or more years Answer: The probability is (b) (5 points) The probability that a can of paint contains contamination is 3.23%. The probability of a What is the probability that a randomly selected mixing error is 24%, the probability of both is 1.03%. can has contamination or a mixing error? Answer The probability is

Explanation / Answer

Solution:

( a )

probability of adoption = 0.65

probability of an adopted puppy live more than 7 years = 0.80

probability that the puppy is adopted and live more than 7 years = 0.65 *0.80 = 0.52

( b )

probability of paint contamination = 3.23% = 0.0323

probability of mixing error = 2.4% = 0.024

probability of both = 1.03% = 0.0103

Probability of paint contamination or mixing error = 0.0323 + 0.024 - 0.0103

= 0.046

= 4.6%