(1)一个人在面试中被录用的概率
80%*(1-2%)+(1-80%)*8%
=0.8*0.98+0.2*0.08
=0.784+0.016
=0.8
(2)一个被录用的人为合格的概率
80%*(1-2%)÷(0.8)
=0.8*0.98÷(0.8)
=0.98
(1)一个人在面试中被录用的概率
80%*(1-2%)+(1-80%)*8%
=0.8*0.98+0.2*0.08
=0.784+0.016
=0.8
(2)一个被录用的人为合格的概率
80%*(1-2%)÷(0.8)
=0.8*0.98÷(0.8)
=0.98