LET IDEAS FLY 1. 2. 3. 4. 5. 6, 7, 8, 91. !! !!! XC C = Q5 2+1 = 7.5. 22+27 7.5.71 5325 37857.5 22 225.77 8725 30784 2 63375 37.5.13 4875 31+2) 37.5 4252.5 A 2 12.9 472.5. 6750 52+53- = 12.5 26730 2 67.5.1 675 7644, 67+6866-5 2 82.5.18 1485 22087 97.5.28 277 82783 2=82,5 1575. 112.5.14 8795 211151.5. 91+98-97.5 2 112+113 12J S n=200 8740 211151.5 == 43.91. 200 199 - (879012 202 2 Q.5. Use the following frequency distribution to approximate the sample mean and variance Class Limits Frequency 1 0 to 15 71 2 15 to 30 37 3 30 to 45 13 4 45 to 60 9 50 60 to 75 10 6 75 to 90 18 7 90 to 105 28 8 105 to 120 14