题目内容
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用计算器计算数据13.49,13.53,14.07,13.51,13.84,13.98,14.67,14.80,14.61,14.60,14.41,14.31,14.38,14.02,14.17的平均数约为( )
A.14.15 B.14.16 C.14.17 D.14.20