统计学求平均数的题目现在有75个数字,每五个数字分一组,分成15组,要使这15组的和基本相等或者相差很小!33.48,33.19,33.51,33.60,33.44,33.21,33.54,33.54,33.03,33.75,33.55,33.03,33.29,33.54,33.67,33.37,33.27,33.55,33.
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![统计学求平均数的题目现在有75个数字,每五个数字分一组,分成15组,要使这15组的和基本相等或者相差很小!33.48,33.19,33.51,33.60,33.44,33.21,33.54,33.54,33.03,33.75,33.55,33.03,33.29,33.54,33.67,33.37,33.27,33.55,33.](/uploads/image/z/13300608-48-8.jpg?t=%E7%BB%9F%E8%AE%A1%E5%AD%A6%E6%B1%82%E5%B9%B3%E5%9D%87%E6%95%B0%E7%9A%84%E9%A2%98%E7%9B%AE%E7%8E%B0%E5%9C%A8%E6%9C%8975%E4%B8%AA%E6%95%B0%E5%AD%97%2C%E6%AF%8F%E4%BA%94%E4%B8%AA%E6%95%B0%E5%AD%97%E5%88%86%E4%B8%80%E7%BB%84%2C%E5%88%86%E6%88%9015%E7%BB%84%2C%E8%A6%81%E4%BD%BF%E8%BF%9915%E7%BB%84%E7%9A%84%E5%92%8C%E5%9F%BA%E6%9C%AC%E7%9B%B8%E7%AD%89%E6%88%96%E8%80%85%E7%9B%B8%E5%B7%AE%E5%BE%88%E5%B0%8F%2133.48%2C33.19%2C33.51%2C33.60%2C33.44%2C33.21%2C33.54%2C33.54%2C33.03%2C33.75%2C33.55%2C33.03%2C33.29%2C33.54%2C33.67%2C33.37%2C33.27%2C33.55%2C33.)
统计学求平均数的题目现在有75个数字,每五个数字分一组,分成15组,要使这15组的和基本相等或者相差很小!33.48,33.19,33.51,33.60,33.44,33.21,33.54,33.54,33.03,33.75,33.55,33.03,33.29,33.54,33.67,33.37,33.27,33.55,33.
统计学求平均数的题目
现在有75个数字,每五个数字分一组,分成15组,要使这15组的和基本相等或者相差很小!
33.48,33.19,33.51,33.60,33.44,33.21,33.54,33.54,33.03,33.75,33.55,33.03,33.29,33.54,33.67,33.37,33.27,33.55,33.65,33.17,33.10,33.53,33.85,33.57,33.23,33.56,33.56,33.10,33.40,33.02,33.65,33.63,33.34,33.34,33.70,33.61,33.59,33.60,33.64,33.20,33.41,33.63,33.57,33.31,33.85,33.42,33.55,33.16,33.33,33.32,33.56,33.68,33.59,33.64,33.47,33.54,33.69,33.61,33.45,33.02,33.50,33.48,33.72,32.98,33.48,33.75,33.68,33.63,33.44,33.60,33.66,33.55,33.35,33.69,33.33
哪位高人给个方法,万分感谢!!
统计学求平均数的题目现在有75个数字,每五个数字分一组,分成15组,要使这15组的和基本相等或者相差很小!33.48,33.19,33.51,33.60,33.44,33.21,33.54,33.54,33.03,33.75,33.55,33.03,33.29,33.54,33.67,33.37,33.27,33.55,33.
全体排序.
第一次从排头取2个,排尾取3个组成一组
第二次从剩下的排列中,排头取3个,排尾取2个
就这么交错着取,直到取完.
1.计算期望。
2.计算平均离差。
3.把样本按照离差排序。
4.从最大离差的样本开始配凑,大离差样本优先、离差和接近平均值者优先。
5.最后调整。
全体排序。 第一次从排头取2个,排尾取3个组成一组 第二次从剩下的排列中,排头取3个,排尾取2个 就这么交错着取,直到取完。 1.计算期望。 2.计算平均离差。 3.把样本按照离差排序。 4.从最大离差的样本开始配凑,大离差样本优先、离差和接近平均值者优先。 5.最后调整。