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某市100名8岁正常男童中,有95%的身高范围在114.18~131.82cm范围内,由此可推出100名。男童身高的均数等于()。

单选题
2021-09-03 11:32
A、A.128c
B、123cm
C、121cm
D、127cm
E、126cm
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正确答案
B

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