7.80 7.92 7.93 7.77 8.15 8.09 8.05 8.00 7.95 7.90
质量管理
-16-
解答
第1步:收集观测值,见上表,这里n=100 第2步,查找数据中的最大值与最小值
xmax=8.21mm,xmin=7.77mm 第3步,确定分组数,这里取k=10 第4步,计算各组组距
4、All that you do, do with your might; things done by halves are never done right. ----R.H. Stoddard, American poet做一切事都应尽力而为,半途而废永远不行6.17.20216.17.202110:5110:5110:51:1910:51:19
3、Patience is bitter, but its fruit is sweet. (Jean Jacques Rousseau , French thinker)忍耐是痛苦的,但它的果实是甜蜜的。10:516.17.202110:516.17.202110:5110:51:196.17.202110:516.17.2021
8.06 7.98 7.92 7.99 8.11 8.04 7.89 7.84 7.84 8.10
7.92 7.85 8.01 7.89 7.91 8.08 7.97 8.17 8.14 7.99
8.14 7.78 7.91 7.98 7.97 7.98 8.00 7.82 7.93 7.83
8.02 7.93 8.06 7.83 8.10 8.21 8.02 7.91 7.97 7.97
13、He who seize the right moment, is the right man.谁把握机遇,谁就心想事成 。21.7.1421.7.1413:06:5413:06:54Jul y 14, 2021