SOA Exam P Sample Question 56
Study guide: Exam P-1
A random variable X has the cumulative distribution function
F(x) = \begin{cases} 0, & x < 1 \\ \frac{x^2 - 2x + 2}{2}, & 1 \le x < 2 \\ 1, & x \ge 2. \end{cases}
Calculate the variance of X.
- A) 7/72
- B) 1/8
- C) 5/36
- D) 4/3
- E) 23/12
Answer this question and see the worked solution