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Mathematics, 18.10.2019 17:30, zoejacobs2002
The life expectancy of a typical lightbulb is normally distributed with a mean of 3,000 hours and a standard deviation of 38 hours. what is the probability that a lightbulb will last between 2,975 and 3,050 hours?
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Answers: 1
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Mathematics, 22.06.2019 02:20, traphard979
Find the probability that -0.3203 < = z < = -0.0287 find the probability that -0.5156 < = z < = 1.4215 find the probability that 0.1269 < = z < = 0.6772
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The life expectancy of a typical lightbulb is normally distributed with a mean of 3,000 hours and a...
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