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Mathematics, 10.02.2020 21:57 kitt90335

A box contains seven 40-W bulbs, eight 60-W bulbs, and nine 75-W bulbs. If bulbs are selected one by one in random order, what is the probability that at least two bulbs must be selected to obtain one that is rated 75 W? (Round your answer to three decimal places.)

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A box contains seven 40-W bulbs, eight 60-W bulbs, and nine 75-W bulbs. If bulbs are selected one by...

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