The guidance system of a ship is controlled by a computer that has three major modules. In order for the computer to function properly, all three modules must function. Two of the modules have reliabilities of .89, and the other has a reliability of .95. a. What is the reliability of the computer? (Round your answer to 4 decimal places.) Reliability 0.8186 b. A backup computer identical to the one being used will be installed to improve overall reliability. Assuming the new computer automatically functions if the main one fails, determine the resulting reliability. (Round your intermediate calculations and final answer to 4 decimal places.) Reliability