(来学网)一患者左眼的日眼压曲线结果如下(mmHg):16.0,17.0,18.0,19.0.20.0,21.0,23.0
  1. 该组眼压的均数是
    A.
    (来学网)16.5
    B.
    (来学网)17.0
    C.
    (来学网)18.5
    D.
    (来学网)19.0
    E.
    (来学网)20.0
  2. 该组眼压的众数是
    A.
    (来学网)16.0
    B.
    (来学网)17.0
    C.
    (来学网)18.0
    D.
    (来学网)19.0
    E.
    (来学网)20.0
  3. 该组眼压的中位数是
    A.
    (来学网)17.5
    B.
    (来学网)18.0
    C.
    (来学网)18.5
    D.
    (来学网)19.0
    E.
    (来学网)19.5