SOA Exam P Sample Question 232
Study guide: Exam P-1
The number of claims X on a health insurance policy is a random variable with E[X^2]=61 and E[(X-1)^2]=47.
Calculate the standard deviation of the number of claims.
- A) 2.18
- B) 2.40
- C) 7.31
- D) 7.50
- E) 7.81
Answer this question and see the worked solution