题目内容

体育课上测量立定跳远,其中一组六个人的成绩(单位:米)分别是:1.0,1.3,2.2,2.0,1.8,1.6 ,则这组数据的中位数和极差分别是(     )

A.2.1,0.6       B. 1.6,1.2      C.1.8,1.2       D.1.7,1.2                                                                                                                                                                                                                                                                                                                         

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