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Suppose the joint pdf of lifetimes of a certain part and a spare is given by
f(x, y) = e-(x + y); 0 < x < inf, 0 < y < inf
and zero otherwise. Find each of the following:
(a) The marginal pdf's, f1(x) and f2(y).
(b) The joint CDF, F(x, y)
(c) P[X > 2].
(d) P[X < Y].
(e) P[X + Y > 2].
(f) Are X and Y independent?
Calculate this seasonal adjustment index if i have 14 periods instead of 16 periods needed?
A friend has offered to play a gambling game with you that involves flipping a coin that he has provided. Since a flip of heads will be to his advantage, you want to test the coin for fairness before you begin to play. Your friend is willing to..
Find TWO peer-reviewed articles that provide examples of studies that utilize the meta-analysis procedure and that were not already discussed by a classmate(s) for this week''s forum discussion. In your own words (i.e., no direct quotes!), briefly de..
The company SlimDown makes weight loss products.
Is the mean Hemoglobin level of a group of high-altitude workers different from 16g/cc and does the mean speed of 50 cars as checked by radar on a I-70 differ from 65mph?
The C.S. Mott Children's Hospital surveyed a national random sample of parents about their desire for email consultation for their child's minor illness or injury and their willingness to pay for this convenience.
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Relationship between the average Wonderlic score and graduation rate?
A typical adult has an average IQ score of 105 with a standard deviation of 20. If 20 randomly selected adults are given an IQ test, what is the probability that the sample mean scores will be between 85 and 125 points?
How should they use the information from the labs?
What are the expected values for each alternative? What decision should be made under expected value? What is the EVPI?
An insurance company suspects that there is a positive linear relationship between the dollar amount of fire damage in residential fires, and the distance between the residence and the nearest fire station. Data were collected on a random sampl..
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