z-score Percentile z-score Percentile z-score Percentile -3.0 0.13 -2.0 2.28 -1.0 15.87 -2.9 0.19 -1.9 2.87 -0.9 18.41 -2.8 0.26 -1.8 3.59 -0.8 21.19 -2.7 0.35 -1.7 4.46 -0.7 24.20 C -2.6 0.47 -1.6 5.48 -0.6 27.43 -2.5 0.62 -1.5 6.68 -0.5 30.85 % of 18-month-old girls weigh between 21.8 and 23.1 pounds. (Round the final answer to the nearest hundredth as needed. Round the z-score to the nearest tenth as needed.) -2.4 0.82 -1.4 8.08 -0.4 34.46 -2.3 1.07 -1.3 9.68 -0.3 38.21 -2.2 1.39 -1.2 11.51 -0.2 42.07 -2. 1.7 -1. 13.5 -0. 46.0

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