SOA Exam P Sample Question 404
Study guide: Exam P-1
The joint probability function of X and Y is
p(x,y) = \begin{cases}
\dfrac{24 - 7x - 3y}{126}, & \text{for } x = 0, 1, 2 \text{ and } y = 0, 1, 2 \\
0, & \text{otherwise.}
\end{cases}Calculate \text{Var}(Y).
- A)
0.56 - B)
0.65 - C)
0.75 - D)
0.80 - E)
0.87
Answer this question and see the worked solution
Concepts tested
- Conditional and Marginal Probability Functions
- Joint Probability Function
- Variance and Standard Deviation