已知一个样本27,23,25,27,29,31,27,30,32,28,31,28,26,27,29,18,24,26,27,30,那么频数为8的范围是( )
A.24.5~26.5 | B.26.5~28.5 | C.28.5~30.5 | D.30.5~32.5 |
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已知一个样本27,23,25,27,29,31,27,30,32,28,31,28,26,27,29,18,24,26,27,30,那么频数为8的范围是( )
A.24.5~26.5 | B.26.5~28.5 | C.28.5~30.5 | D.30.5~32.5 |
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