Question

Saskatoon and Moncton are two of the cities competing for the World university games. (There are also many others). The organizers are narrowing the competition to the final 5 cities. There is a 15% chance that Saskatoon will be amongst the final 5. There is a 30% chance that Moncton will be amongst the final 5 and an 4% chance that both Saskatoon and Moncton will be amongst the final 5. What is the probability that Saskatoon or Moncton will be amongst the final 5.

Answer 1

Let S be the event that Saskatoon will be amongst the final 5. The probability that Saskatoon will be amongst the final 5 is

P(S) = 0.15

Let M be the event that Moncton will be amongst the final 5 The probability that Moncton will be amongst the final 5 is

P(M) = 0.30

There is a 4% chance that both Saskatoon and Moncton will be amongst the final 5. This means, the probability that both Saskatoon (Event S) and Moncton (Event M) will be amongst the final 5 is

the probability that Saskatoon or Moncton will be amongst the final 5 is

ans: the probability that Saskatoon or Moncton will be amongst the final 5 is 0.41