第第34讲简单概率的计算及应用讲简单概率的计算及应用1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.考点训练考点训练49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.甲甲乙乙丙丙丁丁甲甲( (甲，乙甲，乙) )( (甲，丙甲，丙) )( (甲，丁甲，丁) )乙乙( (乙，甲乙，甲) )( (乙，丙乙，丙) )( (乙，丁乙，丁) )丙丙( (丙，甲丙，甲) )( (丙，乙丙，乙) )( (丙，丁丙，丁) )丁丁( (丁，甲丁，甲) )( (丁，乙丁，乙) )( (丁，丙丁，丙) )72.73.74.75.12345612345672345678345678945678910567891011678910111276.77.78.79.80.81.82.83.84.85.86.87.88.89.90.91.右端右端左端左端A1B1B1C1A1C1AB(AB，A1B1)(AB，B1C1)(AB，A1C1)BC(BC，A1B1)(BC，B1C1)(BC，A1C1)AC(AC，A1B1)(AC，B1C1)(AC，A1C1)92.93.94.95.96.97.98.99.100.101.102.103.104.105.106.107.108.109.