E. The frequency distribution of weights (in kg) of 40 persons is given below. Weights in kg Frequency 46 - 50 6 41-45 13 36 - 40 14 31 - 35 4 26-30 3 26. What is the lower limit of fourth class interval? 27. What is the class size of each class interval? 11 28. Which class interval has the highest frequency? 29. Find the class mark of 36-40.​
