Tests show that the lives of light bulbs are normally distributed with a mean of...
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Algebra
Tests show that the lives of light bulbs are normally distributed with a mean of 750 hours and a standard deviation of 75 hours Find the probability that a randomly selected light bulb will last between 750 and 900 hours 99 7 95 68 525 600 675 750 825 900 975 P Enter
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