Once raw data has been collected, you need to represent it in a diagram. Two ways of doing this are to use a pie chart or frequency diagram. In a survey, 100 school students were asked to name their ...

Here is the data for the ages of customers shopping in the Bitesize CD store. Ages of customers in 1-hour period 25, 29, 45, 19, 36, 17, 60, 51, 39, 24, 15, 13, 31 ...