L40 Courses Profile Sydney Sign Out Number of photocopies per teacher 100 200 300 400 500 per day, n P(n) 0.24 0.15 0.22 0.26 0.10 0.03 If the school has 50 teachers, what is the expected value of the total number of photoconies.

Q: A company conducted a marketing survey of its clientele and found that 160 own an iPhone and 89 own…

A: Given that, A company conducted a marketing survey of its clientele and found that 160 own an iPhone…

Q: how many defective bulbs would there be in a lot of 2000 bulbs.?

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Q: the percentage of us deaths due to diabetes in that year is

A: Let W : White who died,    B : Black who died,     A : Asian who died,        then it is given…

Q: what percentage of pregnancies last longer than 279 days?

A: The given mean 266 days and standard deviation 13 days.

Q: What is the error in the sum of the 400 coins.

A: Suppose you are the master of the mint. If you sample 400 coins and the king has set the error…

Q: ow many murders per 100,000 residents can be expected in a state with 2.7 thousand automatic…

A: urders per 100,000 residents can be expected in a state with 2.7 thousand

Q: In​ 2005,10.610.6out of every 50 employees at a company were women. If there are 48,442 total…

A: In the year 2005, 10.6 out of every 50 employees at a company were women.Consider x as the number of…

Q: what are the odds against the paper for having the letter M written on it State your answer as a…

A: HERE from given information  All 11 letters from the word Mississippi are written on individual…

Q: A pharmaceutical company conducts a study where 50 patients are given a drug. They find that 10…

A: Sample is the subset of the population.

Q: If 30.1 out of every 100 pregnant women in Indiana deliver their babies by C-section, how many…

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Q: 500 participants were asked what coping method they use to overcome poor mental health. The results…

A: A table is given : Total outcomes (N) = 500 Let A represents mindfulness activity B represents…

Q: If the average time for a fifth grader to run a mile is 8.50 minutes (s = 1.25), what percentage of…

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Q: A survey reported that 10% of 1800 employees favored a new insurance program. How many employees…

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Q: In his may 17, 2010 OP-ed column in THE NEW YORK TIMES Bob herbert noted that the dropout rate for…

A: In order to check whether the number one is reasonable or not, take the reference from the site to…

Q: In a survey of 1000 students it was found that 840 own a cell phone, 450 own an MP3 player and 370…

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Q: Suppose you toss a fair coin 10,000 times. Should you expect to get 5000 heads?

A: As we know every time a fair coin is tossed the chance of getting head or tail is equal that is 50…

Q: You pay $20 to enter a raffle.  The first ticket drawn wins $964, the second ticket drawn wins $522,…

A: The expectation of a discrete random variable X, denoted by E(X), is defined as a measure of central…

Q: A survey found that 58% of American adults said they use the Internet. If 20 American adults are…

A: Answer - A survey found that 58%   i.e P = 0.58               n= 20,    x = 12

Q: f the coin is flipped 100 times, how many times would you predict that the coin lands on heads in…

A: Let us assume the probability of head of the coin=pThe coin is tossed 100 times.So the expected…

Q: expected payback for a person who buys one ticket in the raffle.

A: Suppose a local symphony decides to raise money by raffling an HD television worth 500$, a dinner…

Q: 20 out of 800 products were found to be defective. At the same rate, how many defective parts will…

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Q: Suppose that a survey asks 150 people about their driving habits. 66 people drove to work regularly,…

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Q: A landscaper mows 25 lawns per day on sunny days, 15 lawns per day on cloudy days, and no lawns if…

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Q: Explain why in a group of 20 people there must be at least two people who share the same birth…

A: There are total 12 months in a year.  So if each person has a distinct birth month, then we can have…

Q: If 1% of a shipment of 2000 light bulbs is defective, how many bulbs in the shipment are NOT…

A: Given, 1%  of a shipment of 2000 light bulbs is defective i.e, number of defective bulbs = 2000 *…

Q: A certain county had a population of 34,485 people. The county hospital is interested in estimating…

A: They test blood samples from 228 patients. Out of this group, 10 have blood type-O. The probability…

Q: A company conducted a marketing survey of its clientele and found that 215 own an iPhone and 106 own…

A: It is given that 215 of the clients own an iPhone and 106 own an iPad. If 19 clients own both an…

Q: a town of 3,000 people, 600 are over 50 years of age and 400 are left-handed. It is also known that…

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