I started with a KillAWatt P4400 power meter and the U.S. Department of Energy average of 11 cents per kilowatt hour of electricity. After that, I estimated my own household's averagedevice usage.
我以一只KillWatt P 4400型电表和美国能源部每千瓦平均11美分的价格开始，之后，我评估了我家的使用的所有小设计的平均使用量。
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The next question is, are the drops in average well-being happening at the same time as trends toward increased electronic device usage?
下一个问题是，平均幸福感的下降是否与电子设备使用量的增加同时发生？
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One 2013 study of college students found that 80% of students use their phones or laptops during class, with the average student checking their digital device 11 times in a typical class.