Mathematics, 14.04.2020 22:05 skyflyer878
A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time. Between 290 hours and 500 hours
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A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 1...
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