单项选择题
A sample of employees were tested on data—entry skills for one hour，and the number of errors (x) they made and the percent of employees (p) making x errors were recorded as follows．
If those employees who made 6 or more errors were removed from the sample and an employee were selected at random from those remaining，what is the probability that the employee selected made no errors（）
A.A
B.B
C.C
D.D
E.E
热门
试题