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Lifetime of lightbulbs are normally distributed with standard deviation of 100 hours. if exactly 90% of the bulbs die before 930 hours, what is the
Lifetime of lightbulbs are normally distributed with standard deviation of 100 hours. if exactly 90% of the bulbs die before 930 hours, what is the mean lifetime of the bulbs? carry intermediate steps to 4 decimal places and final answer to at least one decimal places
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Introductory Algebra Concepts And Graphs
Authors: Charles P McKeague
1st Edition
1630980110, 9781630980115
