Question regarding the joint density function
A random vector (X; Y ) has the joint density function f(x; y) = 6xy2 0 x 1; 0 y 1; 0 otherwise. Find fX(x) and fY (y). Are X and Y independent?
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The mean is always the best measure of central tendency to use. If you use a simple random sample, then your results are guaranteed to be a good measure of the population.
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