an electric company which generates and distributes electricity conducted a study on the life of poles. tha appropriate life data are given in the following table:
years after installation 1 2 3 4 5 6 7 8 9 10
percentage poles failing 1 2 3 5 7 12 20 30 16 4
1.if the company now installs 5000 poles and follows a policy of replacing poles only when they fail, how many poles are expected to be replaced each day during the next ten year.