A group of Northeastern University researchers developed a new method for ranking the total driving performance of golfers on the PGA tour (The Sport Journal, Winter 2007). The method requires knowing a golfer's average driving distance (yards) and driving accuracy (percent of drives that land in the fairway). The values of these two variables are used to compute a driving performance index. Data for the top 40 PGA golfers (ranked by the new method) are saved in the PGA file. (a) Construct a histogram for the 40 driving performance index values. (b) Find the mean, median, and mode for the 40 driving performance index values. (c) Interpret each of the measures of central tendency calculated in part (b).