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wuyuexue
August 18th 2007, 03:05 PM
1. "doesn't ...more than four hours" is include 0,1,2,3, right? Is 4 included in this kind of question?

2. The company is going to build 20 buildings, each with 100. The company will insure the first three buildings' loss, and the insurance company is issued for the left with 100. THe loss follows a possion(u=2). What is the expected amount paid by the self issued company?

jjb5064
August 19th 2007, 12:15 AM
for the first one... i believe it would include the 4th because it would be not including those which are MORE than 4, meaning 5,6,7,...etc

djerry81
August 19th 2007, 03:21 PM
1. "doesn't ...more than four hours" is include 0,1,2,3, right? Is 4 included in this kind of question?

2. The company is going to build 20 buildings, each with 100. The company will insure the first three buildings' loss, and the insurance company is issued for the left with 100. THe loss follows a possion(u=2). What is the expected amount paid by the self issued company?

Could you rewrite question two so that it can be read