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1. a.] Shade P(z < a) = .99 b.] Find the z-score that produces       this probability. c.] Label the z-axis below the curve.

2. a.] Shade P(z > a) = .99 b.] Find the z-score that produces       this probability. c.] Label the z-axis below the curve.

3. a.] Shade P(-a < z < a) = .99 b.] Find the z-scores that produce       this probability. c.] Label the z-axis below the curve.