Give stream of consciousness and then the final answer. In a bucket there are 3 blue balls and 2 red balls. What is the probability of drawing at least one blue ball when drawing two consecutive balls randomly?\nOptions:\n(A) 9/10\n(B) 16/20\n(C) 2/5\n(D) 3/5\n(E) ½
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P(at least one blue) = 1 - P(no blue, so 2 red) = 1- 2/5*1/4 = 9/10.
The final answer: (A).
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