3. The following histogram shows the miles run per week from a study of 69? collegiate runners. This is an estimation problem; do not attempt to calculate exactly! Awide range of reasonable answers will be accepted. {10 points} U 25 5D 75 1 CID 1 25 1 50 Miles per week a. Roughly estimate the mean miles per week of the runners (just eyeball itdo not attempt to calculate exactly!) b. Roughly estimate the standard deviation of miles per week. c. Approximately what is the median miles per week of the runners? :1. Approximately what in the 25th percentile of miles per week of the runners? e. Approximately what is the 99* percentile of miles per week of the runners? f. Use the values you estimated in {a} and {b} to calculate the 95 as confidence mtert'al for the mean BMI in runners