Posted by **soffy** on Monday, June 4, 2012 at 4:22am.

factory worker wages, according to data released by city chamber of commerce, the weekly wages of factory workers are normally distributed according to the probability density function

f(x)= (1/50√2π)e^((-1/2)((x-500)/50)^2)

find the probability that a worker selected at random from the city has a weekly wage of 450-550

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