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The expected (mean) life of a particular type of light bulb is 1,000 hours with a standard deviation of 50 hours. The life of
The expected (mean) life of a particular type of light bulb is 1,000 hours with a standard deviation of 50 hours. The life of this bulb is normally distributed. Which most closely reflects the probability that a randomly selected bulb would last fewer than 940 hours?
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Business Math
Authors: Cheryl Cleaves, Margie Hobbs, Jeffrey Noble
10th edition
133011208, 978-0321924308, 321924304, 978-0133011203
