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January 31, 2015

January 31, 2015

Posted by **sanjay** on Thursday, February 13, 2014 at 11:35pm.

deviation 5 minutes. On one day in four, on average, his lunch break lasts for more than 52 minutes.

Find the value of μ.

- math -
**Steve**, Friday, February 14, 2014 at 12:01amZ(.674) = 0.25

So, (52-μ)/5 = .674

μ = 52-5*0.674 = 48.63

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