Stem and leaf diagrams are formed by splitting the number into two parts, the ‘stem’ and the ‘leaf. For example: In the number 36, the tens would form the stem and the units the leaf. In the number ...

The mean is the most commonly used measure of average. To find the mean of a list of numbers, add them all together and divide by how many numbers there are: \(\text{mean} = \frac{\text{sum of all the ...