Practice Problems for  the Lander Math Contest
Module 3, Problems (7-9)

7) Find the probability that two cards drawn from the deck of
52 cards are both kings if the first card is
    a) Replaced, or
    b) Not replaced.

8) Three marbles are drawn from the box with 4 black, 3 white
and 6 red marbles. What is the probability of getting marbles
in the following order –
    a)red, black and white or
    b) red, white and red?

9) A fair coin is tossed 10 times.
    a) What is the probability of getting exactly one head?
    b) What is the probability of getting at least two heads?