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Seven books, A, B, C, D, E, F, and G, are to be arranged on a shelf. How many ways can they be ordered so that exactly two books will be between books A and B?
A building has ten floors plus a basement, if 12 people get into an elevator at the basement, and each chooses a floor at random to get out of independently, at how many floors do you expect the ele
A chess tournament has 10 competitors of which 3 are Russian, 5 are French and 2 are English. If the tournament result lists just the nationalities of the players in the order in which they are plac
In my office we have 20 men and 35 women. The Board of Directors is going to appoint four new positions: President, Vice President, Sales Director, and a Lawyer.
Formulate a hypothesis related to this statement that you could test and how would you test it?
If the required rate of return is 0.2 conduct a discounted cash flow calculation to determine the NPV. Show all steps and calculations.
A state makes licenses plates with four letters followed by four digits, how many licences plates can you have with no repetition of letters or digits and begin with a vowel?
As of october 2009, the united states federal dept was $11,963,668,027,500. If each of the 307,000,000 people in the United States paid an extra $1000 in taxes each year, every year, how many years
Given the following estimates of various components of genetic variation: VA = 90 VD = 50 VI = 35 VE = 125 What is heritability in the narrow sense equal to?
There is about 80% chance that a randomly chosen person aged 20 will still be alive at age 65. Suppose we randomly select fifteen 20 year olds. What is the chance that at least 12 of the 15 persons
Fred's can of soup has a diameter of 6 inches and a height of 5 inches. Who has the bigger can of soup - Fred or James? Explain.
Question: A published report claims that 7.3% of vehicle fatalities involve motorcyclists. An insurance investigator studies 50 randomly selected accidents and finds that 4 fatalities implicated mot
The probabilities of the weather being fine, raining, or snowing are respectively 1/2, 1/3, and 1/6. The probabilities that a student arrives on time for school under each of these conditions is 3/4
For each of these items be sure to sketch the graph and shade the are of interest. Scores on a standarized exam are normally distributed with U=80 and 0=5
Describe the differences between correlations and regressions. Can you describe situations where you would use one of these over the over and why you would do so?
A coin is tossed 7 times. Let A be the event that the first toss is heads. Let B be the event that the fifth toss is heads.
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