158.157.138.164.143.155.162.165.148.168.158.150.152.158.153.
158.157.138.164.143.155.162.165.148.168.158.150.152.158.153.153.165.158.156.136.132.158.155150.152.154.142.158.159.148.163.145.164.145.157.165求这组数的中位数
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160,152,143,150,162,157,平均数是多少?
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