Question 1027303
Look at the four possible outcomes,
Qualified, approved
Qualified, not approved
Not qualified, approved
Not qualified, not approved
{{{P(QA)=0.8(0.75)=0.6}}}
{{{P(QN)=0.8(0.25)=0.2}}}
{{{P(NA)=0.2(0.2)=0.04}}}
{{{P(NN)=0.2(0.8)=0.16}}}
Since these are the only four outcomes the probabilities must sum to 1. You can verify that this is the case.
Yes, {{{P(QA)=0.6}}}