如图是甲、乙两人6次投篮测试(每次投篮10个)成绩的统计图,甲、乙两人测试成绩的方差分别记作 s甲2 、 s乙2 ,则 Template




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tomski如图是甲、乙两人6次投篮测试(每次投篮10个)成绩的统计图,甲、乙两人测试成绩的方差分别记作 s甲2 、 coloring