SOA Exam P Sample Question 607
Study guide: Exam P-1
From telephone calls made to a help line, the following statistics are compiled:
i) 20% of the calls last for at least 2 minutes and less than 4 minutes. ii) 34% of the calls last for at least 3 minutes and less than 5 minutes. iii) 42% of the calls last for at least 4 minutes and less than 6 minutes. iv) 38% of the calls last for at least 5 minutes and less than 7 minutes. v) 28% of the calls last for at least 6 minutes and less than 8 minutes.
Calculate the probability that a randomly selected call will last for either at least 2 minutes and less than 3 minutes, or at least 7 minutes and less than 8 minutes.
- A)
12\% - B)
18\% - C)
24\% - D)
28\% - E)
30\%
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