calculus

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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 -

    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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