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a box contains two red balls , one white ball and one blue ball. A sample...

a box contains two red balls , one white ball and one blue ball. A sample of two balls was drawn randomly, respectively (without return), If the variable X express the number of white balls and the variable Y express the number of blue balls in the sample, find :

A- Fxy(0,1)

B- Coefficient of correlation between the two variables and then commented on it

Math   Statistics-And-Probability   
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