SOA Exam P Sample Question 527
Study guide: Exam P-1
Let X and Y be random variables for which
i) \text{Var}(X) = \text{Var}(Y)
ii) \text{Var}(X + Y) = 10
iii) \text{Var}(X - 2Y) = 16.
Calculate \text{Cov}(X,Y).
- A)
-1.0 - B)
-0.1 - C)
0.1 - D)
1.0 - E)
2.0
Answer this question and see the worked solution
Concepts tested
- Covariance and Correlation Coefficient
- Linear Combinations of Random Variables
- Variance and Standard Deviation