My Red & Yellow Maths

Today we have been trying to find out how may Red & Yellow counters are in a bag. We knew there were 5 in there but not how many of each. So we recorded what our teacher was pulling out of the bag each time. We did 50 draws and recorded our results. 

This is the pie chart of our results from the 50 draws. We predicted that there were 3 yellow and 2 red counters in the bag and we were 70% certain. We were correct.