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February 1, 2015

February 1, 2015

Posted by **John** on Tuesday, February 15, 2011 at 2:57am.

It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car insurance policies.

What is the probability that at least one policy will have emergency road service?

Answer

0.6242

0.3758

0.8926

0.2684

0.1074

What is the expected number of policies having emergency road service?

Answer

3.5

8.0

1.6

2.0

5.0

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