Exam MAS-I Practice Question 14
Study guide: Exam MAS-I
Claim counts N follow a negative binomial distribution with parameters r and \beta, counting from 0, so that E[N] = r\beta. Which expression is \text{Var}(N)?
- A)
r\beta(1 + \beta) - B)
r\beta - C)
r\beta^2 - D)
r\beta/(1 + \beta) - E)
r(1 + \beta)/\beta^2
Answer this question and see the worked solution