9709 P62 - Jun 2010 - Q6
2948
A small farm has 5 ducks and 2 geese. Four of these birds are to be chosen at random. The random variable \(X\) represents the number of geese chosen.
- Draw up the probability distribution of \(X\).
- Show that \(E(X) = \frac{8}{7}\) and calculate \(\text{Var}(X)\).
