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【单选题】
从某地随机抽取36名35岁以上正常成年男性,测得其平均收缩压为112.8 mmHg,标准差为12.0mmHg,则该地35岁以上正常成年男性收缩压均数的点估计值为A.
0.33
B.
1.0
C.
2.0
D.
112.8
E.
难以确定
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