Which parts of Exercise 7.3 dealt with joint probabilities?
In Exercise 7.3
Now suppose that because of the high level of ticket sales, an additional $250 second prize will also be awarded.
a) Given that you don’t win first prize, what is the probability that you will win second prize?
(The first-prize ticket is not put back into the hopper before the second-prize ticket is drawn.)
b) What is the probability that your mother will come in first and you will come in second?
c) What is the probability that you will come in first and she will come in second?
d) What is the probability that the two of you will take first and second place?