A consensus forecast is the average of a large number of individual analysts' forecasts. Suppose the individ particular interest rate are normally distributed with a mean of 3 percent and a standard deviation of 1.3 percent. randomly selected. Find the probability that his/her forecast is (a) At least 4.0 percent. (Round the z value to 2 decimal places. Round your answer to 4 decimal places.) (b) At most 7 percent. (Round the z value to 2 decimal places. Round your answer to 4 decimal places.) (b) At most 7 percent. (Round the z value to 2 decimal places. Round your answer to 4 decimal places.) (c) Between 4.0 percent and 7 percent. (Round the z value to 2 decimal places. Round your answer to 4 decimal places.)