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Given a standard normal distribution, find the area under the curve that lies (a) to the left of z = -1.39; (b) to the right of z = 1.96; (c) between z = -2.16 and = -0.65; (d) to the left of z= 1.43; (e) to the right of z = -0.89; (f) between z = -0.48 and 2 1.74.

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