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?