SOA Exam P Sample Question 494
Study guide: Exam P-1
Each of the twelve employees of a company independently has the same probability of being accident-free this year.
The expected number of accident-free employees is 9.
Calculate the variance of the number of accident-free employees this year.
- A)
0.75 - B)
1.50 - C)
2.25 - D)
9.00 - E)
12.00
Answer this question and see the worked solution