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Mathematics, 09.07.2020 03:01 hdjsjfjruejchhehd
The lifespan of a certain electronic toy is normally distributed, with a mean of 3000
hours and a standard deviation of 35 hours. Use a standard normal distribution table
or a graphing calculator to find the proportion of toys that have a lifespan between
2920 hours and 2945 hours.
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Answers: 1
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The lifespan of a certain electronic toy is normally distributed, with a mean of 3000
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