Question 805609: Please help me solve this question:
33% of all pets sold at a pet store are dogs. One day, 8 people arrive at the store and purchase pets.(Note: One pet is purchased per person.)
What is the probability that exactly 5 of them are dogs? If the store has only 6 dogs, what is the probability that they have sufficient dogs for sale that day?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 33% of all pets sold at a pet store are dogs. One day, 8 people arrive at the )store and purchase pets.(Note: One pet is purchased per person.)
What is the probability that exactly 5 of them are dogs?
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Binomial Problem with n = 8 and p(dog bought) = 0.33
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P(x = 5) = 8C5(0.33)^5*(0.67)^3 = binompdf(8,0.33,5) = 0.0659
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If the store has only 6 dogs, what is the probability that they have sufficient dogs for sale that day?
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They can expect that 1/3 of their sales will be dogs.
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Cheers,
Stan H.
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