Mathematics, 07.06.2020 01:57, eguilford4438
Susan is a sales representative who has a history of making a successful sale from about 86% of her sales contacts. If she makes 12 successful sales this week, Susan will get a bonus. Let n be a random variable representing the number of contacts needed for Susan to get the 12th sale.
Required:
a. Explain why a negative binomial distribution is appropriate for the random variable n.
b. Compute P(n = 12), P(n = 13), and P(n = 14).
c. What is the probability that Susan will need from 12 to 14 contacts to get the bonus?
d. What is the probability that Susan will need more than 14 contacts to get the bonus?
e. What are the expected value μ and standard deviation σ of the random variable n?
Answers: 3
Mathematics, 21.06.2019 17:30, lexusdixon3
Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.
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Mathematics, 21.06.2019 21:00, desirekotta20
An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as
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