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Consider the bivariate density f(x,y)=c(x+y) for 0<=x<1, 0<=y<1
a) Obtain the appropriate normalization constant c.
b) Obtain the marginal densities for X and Y, and calculate their means and variances.
c) Obtain the covariance between X and Y, and check whether the random variables are independent.
d) Obtain the conditional distribution of Y, given that X=x
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How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 5 percentage points with 92% confidence?
Assume a linear relationship, use the least square method to find the regression coefficients bo and b1 and Predict the mean kilowatt usage when the average temperature is 50 degrees Fahrenheit.
Advertising coefficient is 200 and t stat is 1.75. Which of the following statements is an accurate interpretation of the situation when using an alpha of .10
A film alliance used a random sample of 50 U.S. citizens to estimate that the typical American spent 78 hours watching videos and DVDs last year. The standard deviation of this sample was 9 hours.
Dark treatment is between 0.26 and 1.14 cm shorter than the (population) mean for plants with the Light treatment. Discussion: Are Dark shorter than Light?
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a new integrated computer system is to be installed worldwide for a major corporation. bids on this project are being
are your finances buying habits medical records and phone calls really private? a real concern for many adults is that
A state survey investigates either the proportion of 8percent for employees who commute by car to work is higher than it was five years ago.
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