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合意之下最近更新

(1)平均数: (100+85+54+94+100+87+73+94+97+86+94+92)÷12,; 按从小到大的顺序排列:54,73,85,86,87,92,94,94,94,97,100,100; 中位数为第6、7个数92、94的平均数:(94+92)÷2=93; 有3个94最多,所以众数为:94; 答:平均数是88,中位数是93,众数是94; (2)90分以上的有7人, 优秀率:7÷12*100%≈58.3%; 答:优秀率为58.3%; (3)12÷ 2 69 =414(人); 答:全年级共有学生414人.The average is listed in order from smallest to largest, and the median is the number of the average, so the mode is the average is the median is the mode is the number of the average or above

恩有啊.家教漫画每周五出.你可以去贴吧跟帖也可以去这里.Yes, tutor comics come out every Friday. You can go to the post bar and follow up here

应该齐了都以前备用的

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