在一次演讲比赛中,七位评委为其中一位选手打出的分数如下:9.4,8.4,9.4,9.9,9.6,9.4,9.7 (1)这组数据的中位数是______,众数是______,平均分 . x =______,去掉一个最高分和一个最低分后的平均分 . x 1 =______; (2)由(1)所得的数据 . x , . x 1 和众数中,你认为哪个数据能反映演讲者的水平?为什么?
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参考答案:
举一反三
【单选题】The village where the writer finally decided to settle down ______.
A.
had more pleasant weather than those in the plains
【简答题】阅读理解。 There once lived in China a king and a queen who were very foolish. One day the queen had a baby daughter. When they saw their baby, they cried, 'My goodness!How small it is! It's toothless! It'...
【简答题】There once lived in China a very foolish king and queen. One day the queen had a baby daughter. When they saw their baby, they both cried out, “My goodness! How small it is! It’s hairless and toothles...