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The manager of a restaurant believes that waiters and waitresses who introduce themselves by telling customers their names will get larger tips
The restaurant in a large commercial building provides coffee for the building's occupants. The restaurateur has determined that the mean number of cups
A production process manufacturers alternators. On the average, 1% of the alternators will not perform properly when tested in the plant.
Comparing Scores. Three students take equivalent tests of a sense of humor and, after the laughter dies down, their scores are calculated.
One die is rolled. Find the probability of rolling a two given that an even number has been rolled.
f the probability of a snow storm producing over 20 inches of snow in Easton, PA in a given winter is .33, what is the probabilty that over a period of 10
In a (poorly run) widget factory, it is known that 25% of all products off the line will be defective. A random sample of 5 widgets is taken on a certain day
An army tank 2.2m wide needs to travel 19m to cross a minefield. The enemy that laid the minefield is known to have a standard practice of randomly placing
Consider a Poisson probability distribution with 2 as the average number of occurrences per time period.
Obtaining the Steady-State Distribution for a Transition Probability Density Function from a forward Fokker-Planck equation
The shape of data is another indicator. There are four shapes commonly observed: symmetric, positively skewed, negatively skewed, and bimodal.
Suppose that 30% of all students who have to buy a text for a particular course want a new copy, whereas the other 70% want used copy
A May, 2004 news report indicated that George Bush 74% overall approval rating among Republicans. 26% of all others disapprove.
A city law-enforcement official has stated that 20% of the items sold by pawn shops within the city have been stolen
Engineers must consider the breadths of male heads when designing motorcycle helmets. Men have head breadths that are normally distributed with a mean
You are tossing a die that has probability of 1/6 of coming up 1 on each toss. Tosses are independent. We are interested in how long we must wait
Pam Beesly, the CEO's Administrative Assistant, has worked for Mr. Rump for a little over one year. She was originally hired by the Chief Operations
Chief of Bruin Consulting Engineering Division, Dr. Dil Bert, is in charge of and overseeing the production of the company's DVDs.
Mr. Arthur Van De Lay, not only the company's Chief Information Officer, but also the reigning mid-west "Rock, Paper, Scissors" champion, has bid
Determining Whether a Jury Selection Process Is Biased Assume that 12 jurors are randomly selected from a population in which 80% of the people
Population of consumers where 30% of them favored a new product and 70% of them disliked it. If 20 persons are sampled, what are the probabilities of finding:
Trevor is interested in purchasing the local hardware/sporting goods in the small town of Dove creek, Montana.
Using the age midpoints x and the percentages of of nurses, do we have a valid probability distribution? Explain.
A six-sided die has four green and two red faces, all equally probable. Psychologists asked students to say which of these color sequences
What is the probability that a person taking the examination scores higher than 72?