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(126—129题共用备选答案) A.47.5% B.45. 0% C.90.0% D.95.0% E.50.0% 126. P25一P75范围内
(126—129题共用备选答案)
A.47.5%
B.45. 0%
C.90.0%
D.95.0%
E.50.0%
126. P25一P75范围内的变量值有
127. x (_ )+1. 96s范围内的变量值有
128. x (_ )~(x (_ )+1. 96s)范围内的变量值有
129. x (_ )~(x (_ )-1.645s)范围内的变量值有