Times Spent in Rush-Hour Traffic A sample of 13 drivers shows the time that they spent (in minutes) stopped in rush-hour traffic on a specific snowy day last winter. Round your answers to one decimal place. 72 70 60 61 49 46 48 75 72 78 71 50 51 Part 1 of 3 Find the range. The range is 32 X Part: 1 / 3 Part 2 of 3 Find the variance. The variance is 138.3 XPart 2 of 3 Find the variance. The variance is 138.3 X Part: 2 / 3 Part 3 of 3 Find the standard deviation. The standard deviation is X 5