Question 328033
Good : {{{15}}}
Bad:{{{3}}}
Total:{{{18}}}
.
.
P(at least one bad)+P(both good)={{{1}}}
P(at least one bad)=1-P(both good)
P(both good)={{{(15/18)(14/17)=70/102}}}
P(at least one bad)={{{1-70/102=102/102-70/102=32/102=16/51}}}