A 用正态分布法求95%的参考值范围,其公式一定是<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12477363_0.gif">±1.96S B
如果测定值在性别间或年龄组间的差别有统计学意义和实际意义,则无法确定参考值范围 C
某项指标超出参考值范围的人是异常的或不健康的 D
医学参考值范围是绝大多数"正常人"的生理、生化等指标的波动范围 E
求偏态分布资料的参考值范围时,P<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12477363_0_1.gif">~P<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12477363_0_2.gif">近似于<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12477363_0_3.gif">±1.96S