Question
5.14 For the normal distribution of burning times of electric light bulbs, with a mean equal to 1200 hours and a standard deviation equal to
5.14 For the normal distribution of burning times of electric light bulbs, with a mean equal to 1200 hours and a standard deviation equal to 120 hours, what burning time is identified with
the upper 50 percent?
o
lower 75 percent?
o
lower 1 percent?
o
middle 90 percent?
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Dynamical Systems With Applications Using MATLAB®
Authors: Stephen Lynch
2nd Edition
3319068202, 9783319068206
