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【单选题】
根据样本资料算得健康成人白细胞计数的95%可信区间为7.2×19/L~9.1×19/L,其含义是
A.
估计总体中有95%的观察值在此范围内
B.
总体均数在该区间的概率为95%
C.
样本中有95%的观察值在此范围内
D.
该区间包含样本均数的可能性为95%
E.
该区间包含总体均数的可能性为95%
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