Probability of drawing a red marble

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1. Three fair coins are flipped and the up face on each is observed. Find the probability that all heads or all tails are observed.

2. Find the probability of drawing a red marble or a green marble when a single marble is drawn at random from an urn containing 7 black marbles, 6 green marbles, and 10 red marbles. (Assume the marbles are identical except for color.)

Reference no: EM131870188

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