Question: An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and then a second chip drawn.

An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and then a second chip drawn. What is the probability of

(a) A white chip on the first draw?

(b) A white chip on the first draw and a red on the second?

(d) A red chip on the second, given that a white chip was drawn on the first?

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