Question: An urn contains four red chips, three white chips, and two blue chips. A random sample of size 3 is drawn without replacement. Let X

An urn contains four red chips, three white chips, and two blue chips. A random sample of size 3 is drawn without replacement. Let X denote the number of white chips in the sample and Y the number of blue chips. Write a formula for the joint pdf of X and Y.

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