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Mathematics, 30.03.2021 22:40 weirdojuwin
In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh. Find P45, which is the consumption level separating the bottom 45% from the top 55%.
1021.7
1148.1
1087.8
1078.3
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