In a study of pleas and prison sentences, it is found that 40% of the subjects studied
were sent to prison. Among those sent to prison, 20% chose to plead guilty. Among
those not sent to prison, 10% chose to plead guilty.
3.3.a (0.5 pt) If a study subject is randomly selected, what is the probability that this
person was not sent to prison?
3.3.b (0.5 pt) If a study subject is randomly selected, what is the probability that this
study subject entered a guilty plea?
3.3.c (0.5 pt) If a study subject is randomly selected and it is then found that this
subject entered a guilty plea, �nd the probability that this person was not sent
to prison.
2 answers
25
.0755
1 answer