The table shows the heights of 40 students in a class.
-Height (h) in cm- 120 < t < 124 124 < t < 128 128 < t < 132 132 <t< 136 136 <t< 140 __________ -Frequency- 7 8 13 9 3 __________ a) Calculate an estimate for the mean height of the students
You have to find the number in the middle of all of the heights and multiply them by the all of the frequency (122x7 etc). When you have those answers, add them together and divide the answer by 40.
