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The random vector (X,Y) has density....where is the indicating function on that interval, i.e. it is equal to 1 if y belongs to and is equal to 0 otherwise.
a. Evaluate c so that g is a probability density.
b. Find the marginal densities of X and Y. Are they independent, and why?
1.a local farmer is interested in comparing the yields of two varieties of tomatoes. in an experimental field he
The standard deviation is 2 pounds. If 15% of the suitcases are overweight, Determine the maximum weight allowed by the airline. Assume the variable is normally distributed.
Compute and compare the proportions of head injury for the group with helmets versus the group without helmets. What would be your conclusion?
estimating the percentage of youngsters between 16-0 driving
Give an estimate of this common popualtion variance by pooling the sample variances given. Give an estimate of this common population variance based on the variance of the sample means given.
According to recent surverys, 53% of households have personal computers. if a random sample of 175 households is selected, what is the probability that more then 75 but fewer than 110 have a personal computer?
Determine the 95% confidence interval for your estimate what data have you utilized as the basis of your predictions what suppositions have you made.
a recent survey asked 4381 individuals whats most important to you when choosing where to live? the responses are shown
Calculated test statistic at the 5% level of significance and An airline claims that 65% of its flights depart on time.
if it is known that a simple linear regression model explains 56 percent of the variation in the dependent variable and
Random samples of size 64 are taken from a large population whose mean is 160 and whose standard deviation is 25. What is the mean of the sampling distribution of the sample mean?
The p-value for a test statistic is .085, what is the minimum level of significance required to reject the null hypothesis?
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