The speed with which utility companies can resolve problems is very significant. GTC, the Georgetown Telephone Company, reports they can resolve customer problems same day they are reported in 74 percent of cases. Assume the 15 cases reported today are representative of all complaints
How many of problems would you expect to be resolved today? (Round your answer to 2 decimal places.)
Determine the standard deviation? (Round your answer to 4 decimal places.)
Determine the probability 7 of the problems can be resolved today? (Round your answer to 4 decimal places.)
Determine the probability 7 or 8 of the problems can be resolved today? (Round your answer to 4 decimal places.)
Determine the probability more than 10 of the problems can be resolved today? (Round your answer to 4 decimal places.)