Yesterday we did a study on paper planes we did some research on paper planes. Then we made some and tested them here are the results. Also on the right there are the mean, median, mode and range for all of our scores.

This is how you work them out:

MEAN:
You add all the number together and divide them by how many number there are e.g 5+7=12/2=6
MEDIAN:
You put the number in order and find the middle one e.g 2, 4, 6, 8,9 median =6
MODE:
You find the most common number e.g 5, 3, 7, 5, 7, 9, 8, 7 mode =7
RANGE:
You minus the smallest number from the largest e.g 5, 8, 11, 6, 3, 2  11-2=9