Of 20 customers at a vending machine, 8 spent 50p, 5 spent 60p, 4 spent 75p and 3 spent £1. What was the total amount spent?

Mean and mode are two types of averages found in data handling. The three averages are:  mean, mode and median - which can be used in different situations. An average is a typical or representative value of a data set. Look at how the data is spread out or distributed around some sort of average.