Mathematics, 20.09.2020 01:01 mattmaddox86
Does reducing screen brightness increase battery life in laptop computers? To find out, researchers obtained 30 new laptops of the same brand. They chose 15 of the computers at random and adjusted their screens to the brightest setting. The other 15 laptop screens were left at the default setting - moderate brightness. Researchers then measured how long each machine's battery lasted. Was this an observational study or just an experiment? Justify your answer.
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What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.
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The police chief wants to know if the city’s african americans feel that the police are doing a good job. identify the management problem (i.e dependent variable) and identify the independent variable.
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Does reducing screen brightness increase battery life in laptop computers? To find out, researchers...
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