6.27 Economic Forecasts One method of arriving at economic forecasts is to use a consensus approach. A forecast is obtained from each of a large number of analysts, and the average of these individual forecasts is the consensus forecast. Suppose the individual 2013 January prime interest rate forecasts of all eco- nomic analysts are approximately normally distributed, with the mean equal to 4.5% and the standard deviation equal to 0.1%. If a single analyst is randomly selected from among this group, what is the probability that the analyst's forecast of the prime interest rate will take on these values?

a. Exceed 4.75%

b. Be less than 4.375%