Homework Help: calculus

Posted by soffy on Tuesday, June 12, 2012 at 8:44am.

according to data released by the chamber of commerce of a certain city, the weekly wages of female factory workers are normally distributed with a mean of 575 and a standard deviation of 50. Find the probability that a female factory worker selected at random from the city makes a weekly wage of 550 to 650

statistics-normal distribution - MathMate, Tuesday, June 12, 2012 at 10:20am
μ=575
σ=50
z1=(550-575)/50=-0.5
z2=(650-575)/50=+1.5
From normal distribution tables, find the probability between z=-0.5 to z=+1.5.

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