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What do you know about parent 1's colour genes, and about the height genes of grandparent 4 and therefore parent 2?
How can Coola be sure the plant won't be the same height and the same colour as grandparent 3?
What must be different between parent 1 and grandparent 1 for the plant to be more likely to look like one than the other?
A man went to Monte Carlo to try and make his fortune. Is his strategy a winning one?
Two bags contain different numbers of red and blue marbles. A marble is removed from one of the bags. The marble is blue. What is the probability that it was removed from bag A?
You and I play a game involving successive throws of a fair coin. Suppose I pick HH and you pick TH. The coin is thrown repeatedly until we see either two heads in a row (I win) or a tail followed by a head (you win). What is the probability that you win?