calculus
posted by soffy .
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

μ=575
σ=50
z1=(550575)/50=0.5
z2=(650575)/50=+1.5
From normal distribution tables, find the probability between z=0.5 to z=+1.5.