A breath analyzer used by the police to test whether drivers exceed the legal limit set for the blood
alcohol percentage whiles driving is known to satisfy
P(A|B) = P(AS | R®) = p
Where A is the event "breath analyzer indicates that legal limit is exceeded and B is "driver's
blood alcohol percentage exceeds legal limit." On Friday night about 5% of the drivers are known
to exceed the limit.
.
Describe in words the meaning of P(B° | A).
=:
Determine P(B° | A) if p=0.95*
