I need my answer in excel, some are random variables and discrete probability distributions. i need my tomorrow at 5pm
1 The leading brand od dishwasher has a 30% market share. A sample of 25 dishwasher
detergent customers was taken. What is the probability that 10 or fewer customers
chose the leading brand?
2 A student majoring in accounting is trying to decide on the number of firms to which he
should apply. Given his work experience and grades, he can expect to receive a job offer
from experience and grades, he can expect to receive a job offer from 70% of the firms
to which he applies. the student decides to apply to only four firms. What is the
probability that he receives no job offers?
3 In the united states votes who are neither democrat nor republican are called
independent. It is believed that 10% of all voters are independent. a survey asked 25
people to identify themselves as democrat, republican, or independent.
a- What is the probability that none of the people are independent?
b- What is the probability that fewer than five people are independent?
c- What is the probability that more than two people are independent?
4- major software manufactures offer a help line that allows customers to call and receive
assistance in solving their problems. However, because of the volume of calls, customers
frequently are put on hold. One software manufacturer claims that only 20% of callers are put
on hold. Suppose that 100 customers call. What is the probability that more than 25 of them are
put on hold?
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