A survey asked college juniors and seniors if they could study abroad, would they choose London, Pairs, or Madrid.
The results appear below.
College
Level MB |
Foreign Country for Study |
London |
Paris |
Madrid |
Total |
Junior |
90 |
80 |
70 |
240 |
Senior |
80 |
95 |
95 |
270 |
Total |
170 |
175 |
165 |
510 |
a) What is the probability that a student chosen at random is not a junior?
b) What is the probability that a student chosen at random did not select Paris?
c) What is the probability that a student chosen at random is a junior and selected Madrid?
d) What is the probability that a student chosen at random is a junior and did not select Madrid?
e) What is the probability that a student chosen at random selected London, given that the student is a senior?
f ) What is the probability that a student chosen at random is a junior, given that the student selected Paris?