Understanding mean, median, mode and range is essential to be able to compare sets of data. Watch the video to hear Steph, a sports coach, talk about why collecting and comparing data is useful ...

Mean? Mode? Median? Range? Easy! Learn how to spot the difference and take your maths skills above average using this BBC Bitesize guide for KS3 Mathematics.

How to Calculate Variance in Excel To calculate variance in Excel, you will need to have your data set already entered into the software. Once you have your data, you can choose your formula based ...

There's a lot going on in these formulaic conditional rules in Microsoft Excel that highlight the smallest and largest values within a period of years.