The table below gives the masses in kg of 35 students in a particular school 45, 43, 54, 52, 57, 59, 65, 50, 61, 50, 48, 53, 61, 66, 47, 52, 48, 40, 44, 60, 68, 51, 47, 51 41, 50, 62, 70, 58, 42, 51, 49, 55, 71, 60, a. using the above given data construct a frequency table with class interval 40-44,45-49,50-55,etc. b. from the data above, calculate the mean of the distributions. c. using assumed mean of 52, calculate, correct to two decimal places the mean of the distributions​