. Please present your work as a Word or pdf file with all working/formulae Marks for a Statistics class were given as follows: 23, 50, 38, 42, 63, 75, 12, 33, 26, 39, 35, 47, 43, 52, 56, 59, 64, 77, 15, 21, 5, 54, 72, 68, 36, 65, 2, 60, 27, 34, 47, 48, 55, 58, 59, 62, 51, 48, 50, 41, 57, 65, 54, 43, 56, 44, 30, 46, 67, 53, 80, 25,30, 72, 80, 45, 35, 20, 5, 65, 55, 25, 65, 32, 22, 80, 75, 60, 50, 21, 45, 48, 35, 66, 46, 28, 30, 24, 44, 20, 29, 39, 78, 75, 44, 35, 68, 72, 75, 18, 32, 48, 60, 80, 21, 60, 40, 30, 36, 79, 19, 73, 22, 25, 18, 30, 65, 15, 20, 44, 25, 78, 76, 25, 22, 80, 60, 30, 50, 33, 53, 55, 23, 43, 10 Questions 1. Construct a frequency distribution table using the first class as"1 - 10 "and continuing accordingly. 2. Calculate the mean. 3. Calculate the variance (we will complete this on Wednesday 1st June in class). 4. Calculate the standard deviation (We will complete this on Wednesday 1st June in class) 5. Compute the coefficient of variation (we will complete this on Wednesday 1st June in clas) 6. Identify the modal class. 7. Identify the median class