Charles invested $1,000 in large U.S. stocks at the beginning of 2012. This investment earned 15.25 percent in 2012, 31.60 percent in 2013, 12.95 percent in 2014, and 1.00 percent in 2015. What retum did he earn in the average year during the 2012-2015 period? (Round answer to 2 decimal places, e.g. 1.52.) Excel Template (Note: This template includes the problem statement as it appears in your textbook. The problem assigned to you here may have different values. When using this template, copy the problem statement from this screen for easy reference to the values you've been given here, and bsure to update any values that may have been pre-entered in the template based on the textbook version of te problem.) er that may the problem.,mplate, Return earned in the average year The distribution of grades in an introdutory finance class is normally distributed, with an expected grade of 72. If the standard deviation of grades is 15, in what range would you expect 9S.00 percent of the grades to fall? (Round answers to 2 decimal places, e.g. 15.25. Hint: Think in terms of what the expected highest and lowest scores would be for 95.00% of the students taking the exam.) Note: This template includes the problem statement as it appears in your textbook. The problem assigned to you here may have different values. When using this template, copy the problem statement from this screen for easy reference to the values you've been given here, and be sure to update any values that may have been pre-entered in the template based on the textbook version of the problem.) 95.00 percent of the grades should fall beween the ranges (lower end) and (upper end)