1. Expression for the variance of Y
2. Probability that the first trial B1 fails.
3. Expression for the mean of X
4. Probability that Y is zero
5. Probability that X is 2
6. Covariance between B1 and B2
7. Expression for the expected value of Y
8. The expected value of B1
9. Probability that Y is n
10. Probability that X is zero
(a) np
(b) e-λ
(c) e-λ λ2 / 2
(d) p
(e) 0
(f) pn
(g) 1 - p
(h) (1 – p)n
(i) np(1 – p)
(j) λ