Statistical Investigation

 This week for Maths we had to find the average of each team of athletics day. 

First thing we did was find out how many points each team had in each class. Next we added those points to find each teams total points. Then we added all the points of each team and tried to find the mean (average) by dividing the total points by 9. 

A way of finding the mean faster is by using multiplication. 

Here's an example: If there is 2, 2, 3, 4, 5, 6 then do this. (2x2) + (3x4) + (5x6) = ???. If you're wondering on how to add this then do this is how. 2 x 2 = 4, 3 x 4 = 12, 5 x 6 = 30. Then add all these numbers up: 4 + 12 + 30 = 46. 46 is how much points a team got. 

This activity was hard because we had to figure out the answer ourselves without using the calculator or any type of thing to find the answer. I still had fun because of how much I improved on my addition skills to find out the answers.