SOA Exam P Sample Question 430
Study guide: Exam P-1
Two different models of televisions, A and B, have exponentially distributed lifespans, measured in years. The probability that television A and television B are still working T years from now is 0.49 and 0.70, respectively.
The variance of television A's lifespan is 5.60.
Calculate the variance of television B's lifespan.
- A)
1.40 - B)
1.80 - C)
2.80 - D)
11.20 - E)
22.40
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