SOA Exam P Sample Question 338
Study guide: Exam P-1
The table below shows the joint probability for the number of root canals and the number of fillings a dental patient undergoes this year.
Number of root canals \backslash Number of fillings |
0 | 1 | 2 | 3 | 4 |
|---|---|---|---|---|---|
| 0 | 0.40 | 0.26 | 0.05 | 0.04 | 0.01 |
| 1 | 0.04 | 0.03 | 0.03 | 0.03 | 0.02 |
| 2 | 0.01 | 0.01 | 0.02 | 0.03 | 0.02 |
Calculate the expected number of root canals the patient undergoes, given that the patient undergoes at most one filling this year.
- A) 0.11
- B) 0.15
- C) 0.17
- D) 0.33
- E) 0.91
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