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What is the expected time between jobs? How long does it take at most, to have the arrival of the first job with a probability of 0.9? Give your answer in minutes.
In a group lineup of 7 models in a commercial, 3 are male and 4 are female. In how many ways can you arrange 3 models in a lineup if the first and the third must be a male but the second one must be
To evaluate a particular Metlar scale, an item whose weight is known to be 16.01 ounces is weighted five times by the same operator. The measurements (in ounces) are saved in the METLAR file and fol
Question: The following table shows the Price-to-Earnings ratio for a Stereo equipment manufacturing company between 1998 and 2002.
Engine Capacity: The engine in a 1957 Chevrolet Corvette has eight cylinders. Each cylinder is a right cylinder with a bore (diameter) of 3.875 in. and a stroke (height) of 3 in. Determine the total
Two inspectors review the quality of a manufactured component and classify the items as good, repairable, and scrap. Each inspector looks at every item, but they do not always classify the items in
Assuming that the experiment can be considered as a Bernoulli trials process with probability p for success, show that the maximum likelihood estimate for p is the proportion m/n of success.
SoTex Productions is doing a spring catalog shoot for a big clothing retailer. They want to show 3 couples (boy and girl) in each shot, and they have 6 male models and 7 female models. How many diff
Women's SAT math scores in 2007 had the N(499,110) distribution. What percent of women scored 750 or better? Round your answer to the nearest hundredth but do not include the % symbol.
A Garage door opener has six toggle switches, each with three settings: up, center, and down. How many settings are possible in which two switches are up, two are down, and two are center?
Question: A graduate student has decided she needs a day at the beach. She will need a swimsuit, a pair of sunglasses and a beach towel for the occasion. If she has 2 swimsuits, 3 pairs of sunglasse
How can standardized z-scores be used to compare people across different contexts, such as the batting averages of two players-one who played in the 1970s and one who played in the 1990s?
Imagine that a student takes a 20-item multiple choice exam. She didn't study, so all of her answers are guesses. Each item on the exam has five possible answers. What is the expected number of corr
A committee of 8, consisting of 2 Republicans, 3 Democrats, and 3 Independents, is to be chosen from a group of 5 Republicans, 6 Democrats, and 4 Independents. How many different committees are pos
In a game of change if you purchase one ticket out of the 100 tickets being sold at a cost of $ 5.00 how much money would you expect to win taking into consideration the cost of the ticket. The winn
Question: Suppose that we have two events, A and B, with P(A)=.50, P(B)=.60, and P(A union B) = .40
Electric charge is distributed over the rectangle 1 = x = 2, 0 = y = 2 so that the charge density at (x, y) is s(x, y) = 2xy + y2 (measured in coulombs per square meter). Find the total charge on the
You are going to select 6 players for a volleyball team from a group of 13 players. How many possible teams can be selected? Assume each player selected can play any position on the team.
A bridge hand (thirteen cards) is dealt from a standard 52-card deck. Let A be the event that the hand contains 4 aces; let B be the event that the hand contains four kinds. Find P(A U B).
A family managed to decrease their energy consumption from 145 kilowatt-hours to 136 kilowatts-hours. What percent of energy has been saved?
In how many ways can a photographer arrange 6 people in a row from a group of 10 people, where the bride and groom are among those 10 people if:
Suppose we decide to examine another test spot weld. Let X = shear strength of the weld. Use the given data to obtain the mle of P(X = 400).
You find that a small business loan in the amount of 50,000 is the amount you need to purchase the restaurant location. After researching banks to find the best interest rate, you find that banks fo
What do you conclude about the claim below? Do not use formal procedures or exact calculations. Use only the rare event rule and make a subjective estimate to determine whether the event is likely.
There are thirty-five (35) members in the Kalamazoo Travel Club. Four (4) people will be chosen to win a vacation. How many ways can the four (4) be chosen if all four will win a trip to Greece?