Compute the mean recovery time and the standard deviation 4 points For number 31 - 32, present mean with 2 decimal places and standard deviation with 4 decimal places 31.) In a medical study, the number of days it took to recover from a certain strain of airborne disease was recorded for a group of 50 people. The results were tabulated and put into a frequency table Days 3 9 20 12 4 2 Your