某地調(diào)查100人得收縮壓X=140mmHg,S=10mmHg,該地95%的人收縮壓的范圍是()
A.139.8~140.2mmHg B.120.4~159.6mmHg C.125.0~154.6mmHg D.138.0~141.9mmHg E.135.0~145.0mmHg
A.2.14kg B.5.14kg C.2.82kg D.0.95kg E.無(wú)法計(jì)算
A.4 B.5.5 C.7 D.12 E.9.5