Question 17 Not answered Marked out of 20 p Flag question Multi-part The data show the highest temperature of the last leap year February. Class Frequency 34 -36 37 - 39 2 40 - 42 4 43 -45 46 - 48 49 -51 52 -54 6 (a) Calculate the midpoints of all classes (b) Using the midpoints, estimate the grouped mean for the temperatures of the month of February (note the total days is 29, as it is a leap year) (c) The actual mean is 46.4 . there's a little discrepancy between the actual mean and your answer in part b. Explain this