Mathematics, 31.03.2021 03:50 gabby640
The working life of a lightbulb is normally distributed with mean 1.3 years and standard deviation 0.3 year. What is the probability that it will last at least a year?
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Mathematics, 22.06.2019 02:10
What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.
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The working life of a lightbulb is normally distributed with mean 1.3 years and standard deviation 0...
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