Question 875190
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Hi
m = 80, SD = 10
P(z < (94-66)/10) = normalcdf(66,94,80,10)  Using TI (Highly recommended)
Or P(z < (94-66)/10) = P(x <94) - P(x , 66) = P(z < (92-80)/10) - P(z < (66-80)/10)
P(z< 1.4) - P(z < -1.4) = .9192 - .0808 = .8384