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In a large department store a customer-complaints office handles an average of six complaints per hour about the quality of service. The distribution is Poisson.
What is the probability that in any hour exactly six complaints will be received?
What is the probability that more than 20 minutes will elapse between successive complaints?
What is the probability that fewer than 5 minutes will elapse between successive complaints?
The store manager observes the complaints office for a 30-minute period, during which no complaints are received. He concludes that a talk he gave to his staff on the theme "the customer is always right" has obviously had a beneficial effect. Suppose that, in fact, the talk had no effect. What is the probability of the manager observing the office for a period of 30-minutes or longer with no complaints?
Find the expected payback for the games of chance described in exercise, In one form of roulette, you bet $1 on "even." If 1one of the 18 even numbers comes up, you get your dollar back, plus another one. If 1 of the 20 noneven (18 odd, 0, and 00)..
If 36000 cartons of eggs are available at the beginning of a certain week and the price is falling at the rate of 2¢/carton/week, at what rate is the supply changing? (Round your answer to the nearest whole number.) (Hint: To find the value of p w..
consider the growth rates of the u.s. quarterly gross national product gnp from 1947.i to 2011.iv. the original data
A logistics specialist for Charm City Inc. must distribute cases of parts from 3 factories to 3 assembly plants. The monthly supplies and demands, along with the per-case transportation costs are: Assembly Plant 1 2 3 Supply
Identify the meaning of independent and dependent events. Calculate probabilities and joint probabilities of simple events. Explain the basic logic of probability theory
snell's law total internal reflection between two materials is seen to occur if a critical angle of 60° is exceeded. if the index of refraction of the material that the light is entering is 1.98, find the index of refraction of the material in whi..
Two planes take off from at the same time, one is flying due east at a constant speed of 325 mph and the other flying due south at a constant speed of 280 mph. If their radios have a max. range of 1300 miles, then at approximtely what time can the..
Find the long-term probability. D. The population can double, halve or stay the same. Find the probability of each of these events after a long time, and compute the geometric mean growth rate. Why does your answer make sense?
A woman deposits $50,000 in a savings account with 4% continuously compounded interest. How many years must she wait until the balance has doubled? Use the Compounding continuously formula and show the steps involved in getting the solution.
Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 40% down. Assume that the monthly cost to finance $1,000 is $6.00. What are the monthly payments.
In your own words, what does it mean for two equations to be dependent or to be independent? Type an equation for g(x) that results, with f(x), in an independent and consistent system: f(x) = 2x - 8 g(x) = ?
A jeweler has three small solid spheres made of silver, of radius 2 mm, 6 mm, and 6 mm. He decides to melt these down and make just one sphere out of them. What will the radius of this larger sphere be?
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