9709 P6 - Nov 2003 - Q8
2976
A discrete random variable X has the following probability distribution.
| x | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| P(X = x) | 3c | 4c | 5c | 6c |
- Find the value of the constant c.
- Find E(X) and Var(X).
- Find P(X > E(X)).
Solutions locked. Please sign in with access to view them.