2. The mean of people 65 and older in populations across all U.S. counties is 18% and the standard deviation is 4%. Fill in the normal curve below with values for , and label each interval and the percentage of data each comprises, based on the normal approximation of those values. In other words, label the intervals with the percentages of the curve they represent. Each interval will have a value. 3. Now find the values of and so on, showing your work. Write these values in the correct places on the normal curve