题目内容
(请给出正确答案)
[单选题]
在一次歌手大奖赛上,七位评委为歌手打出的分数如下:9.4,8.4,9.4,9.9,9.6,9.4,9.7,去掉一个最高分和一个最低分,所剩数据的平均值和方差分别为
A.9.4, 0.484
B.9.4, 0.016
C.9.5,0.04
D.9.5,0.02
答案
B、9.4, 0.016
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A.9.4, 0.484
B.9.4, 0.016
C.9.5,0.04
D.9.5,0.02
第1题
A.9.4, 0.484
B.9.4, 0.016
C.9.5,0.04
D.9.5,0.02
第2题
A.9.4, 0.484
B.9.4, 0.016
C.9.5,0.04
D.9.5,0.02
第3题
A.9.4, 0.484
B.9.4, 0.016
C.9.5,0.04
D.9.5,0.02
第4题
A.9.4, 0.484
B.9.4, 0.016
C.9.5,0.04
D.9.5,0.02
第5题
A.9.4, 0.1
B.9.4,0.01
C.9.5, 0.1
D.9.5,0.01
第6题
A.质量准则
B.方式准则
C.礼貌准则
D.克制准则
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