The speed with which utily companies can resolve problems is very important. GTC, the Georgetown Telephone Company, reports if can resolve customer problems the same day they are reported in 80% of the cases. Suppose the 15 cases reported today are representative of all complaints. a-1. How many of the problems would you expect to be resolved today? (Round your answer to 2 decimal places.) a-2. What is the standard devlation? (Round your answer to 4 decimal places.) b. Whot is the probability 6 of the problems can be resolved todoy? (Round your answer to 4 decimal places.) c. What is the probability 6 or 7 of the problems can be resolved today? (Round your answer to 4 decimal places.) d. What is the probability more than 10 of the problems can be resolved today? (Round your answer to 4 decimal places