Consider an urn containing twenty identical red balls, numbered
one to twenty, and twenty identical blue balls numbered one to
twenty. Two balls are selected at random one at a time with
replacement from this urn. i) What is the probability that a red
and a blue ball are selected with the number one on each of them?
ii) What is the probability that the balls have same numbers or
same color on them?
Consider an urn containing twenty identical red balls, numbered one to twenty, and twenty identical blue balls numbered
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