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The joint distribution of a proportion of votes for candidate X and a proportion of votes for candidate Y is given by fx,y(x,y)=1, 0<=x<2, 0<=y<=1, 2y<=x.
The difference between these proportions is given by U=X-Y.
(a) Find the probability density function for U.
(b) Use the answer in the previous part to find E[U].
a casino gambler assums the dice he uses are fair. an investigator recorded the outcomes of 600 rolls of such a
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
For the following scores, find the: A. Mean. B Median. C. Sum of squared deviation. D. Variance. E. Standard deviation.
Develop an estimated regression equation relating the top speed with the boat's beam and horsepower rating and compute and interpret and R2 and R2a
Calculate a 95% confidence interval for the difference in the proportions of birth defects when the contaminated well was in use and when the contaminated well was not in use.
What is the probability that none of these crimes will be solved? What is the probability that at least one of these crimes will be solved?
kindergarten children have heights that are approximately normally distributed about a mean of 39.7 inches and a
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
Kansas City prefer the new package, the probability that Catherine's random sample of 300 households will have a sample proportion greater than 0.45 is?
You're not sure if you should buy a stock and need to discover the probability of the stock having a positive return (based on one year).
suppose that y1 y2 . . . yn denote a random sample from an exponentially distributed population with mean?find the mle
The lifetime of a 2-volt non-rechargeable battery in constant use has a Normal distribution with a mean of 516 hours and a standard deviation of 20 hours. The proportion of batteries with lifetimes exceeding 520 hours is approximately.
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