Statistics l Maths

I did a data set from athletics days to discover the group scores and points.

A data set is a group of numbers. To add them up you can use repeating addition, or mutiplications. A data set usually uses mutiplication since it is easier to use to solve equations, when you're using mutiplication it is easier since if you're using addition you may get the wrong number. Mutiplication is used like this: (3x2)+(2x4) = 14, instead of 2 + 2 + 5 + 5 = 14.

To find a averages you add numbers up and divide them. Averages is used like this: 14÷2 = 7, then 140÷2 = 70, next we divide the 7 by 2. The 7 is made out of 70 tenths. There is no 2 in 7 so we we put the 7 with the 70 and that makes 70.7.

Mutiplication is a easy way to solve data sets and get the answer earlier than repeating addition.