Hi Normal Distribution: z-scores/Standard Normal Curve μ = 0 σ =1 Curve is Continuous. Using a TI or similarly an inexpensive calculator like a Casio fx-115 ES plus P(z < -2.92 ∪ z > 0.06) = P(z ≤ -2.92 ) + 1 - P(z ≤ .06) = P(z < -2.92 ∪ z > 0.06) = .0018 + (1-.524) = .00180 + 0.476 = .4788 Wish You the Best in your Studies.