Mathematics, 04.08.2019 00:30, kate712
The mean life of a particular brand of light bulb is 1200 hours. if you know that at about 95% of this brand of bulbs will last between 800 and 1600 hours, then what is the standard deviation of the light bulbs' life?
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The mean life of a particular brand of light bulb is 1200 hours. if you know that at about 95% of th...
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