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An experiment consists of rolling a special 22-sided die. All of the numbers, 1 through 22, are equally likely. Find the probability of each event.
a. A = rolling a number greater than 10 and even.
b. B = rolling a prime number or a number divisible by 5.
c. C = rolling at most an 11.
d. D = rolling a number divisible by 2 and 3.
The same exponential distribution with the mean E(Xi)=2, (i=1, 2, ..., n), and Y=X1+X2+...+Xn. Find the moment-generating function of Xi (i=1, 2, ..., n).
Also, the sample data appear to have a bell-shaped distribution. Construct the 95% confidence interval for the mean time spent on paperwork by all managers.
In a random sample of 150 freshman applications received thus far, 67 of the applicants request financial aid. Is there evidence that the proportion of next year's freshmen class needing financial aid has increased?
one of larrys investments is going to mature and he wants to determine how to invest the proceeds of 30000. larry is
a certain disease is found in one person in 5000. if a person does have the disease the test will show a positive
Construct a decision tree, and determine what style the designer should choose to maximize her expected pro?ts.
Suppose that one piston from Machine 1 and one piston from Machine 2 are chosen at random from today's batch. What is the probability that the piston chosen from Machine 1 is unsatisfactory and the piston chosen from Machine 2 is satisfactory?
Construct a scatterplot showing the relationship between class load and hours per week employed. Does there appear to be a relationship between the variables?
In the early 16th Century, when New York was a Dutch colony, what was it called, and who was the administrator of this colony?
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
The diameters of oranges in a certain orchard are normally distributed with a mean of 5.26 inches and a standard deviation of 0.500 inches.
find an equation of the parabola that has the indicated vertex and whose graph passes through the given point. vertex
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