Problem Set #4. calculate the mode, median, mean, range, interquartile range, variance ,standard deviation , and coefficient of variation for the simple frequency distribution of first digits of Massachusetts city and town populations from week2 (x ) Digit f cf Cy . Mode 1 128 128 P1 36. 71 36. 71. 2 44 172 12. 6% 49. 31 75th vallee 3 39 211 11 .24 60.5% 4 31 242 8 .91 169. 3% 5 25 267) P3 7.2 7 76- 5/ 6 24 291 6.9 183.4% 20 311 5. 2 % 89.4 % 18 2 1 3 32 6.01 95.7 1. 9 17 349 41.9% 10 0 % Total 349 100/