Question 837868
P(Good)P(Good)={{{(0.992)(0.992)=0.984064}}}
P(Good)P(Bad)={{{(0.992)(0.008)=0.007936}}}
P(Bad)P(Good)={{{(0.008)(0.992)=0.007936}}}
P(Bad)P(Bad)={{{(0.008)(0.008)=0.000064}}}
P(one or both bad)={{{0.007936+0.007936+0.000064=0.015936}}}
You could have also done,
P(one or both bad)=1-P(both good)={{{1-0.984064=0.015936}}}