Amrit wants to understand more about his customers and their spending habits. Looking at data from his till he identifies the spending of 700 of his customers. Using this data he divides them up by how much they spend. The data is shown in the table. He then draws a histogram showing different categories of spending by these customers. The histogram is shown below. Amit calculates that the mean spend from these customers is $6.5, but the lower quartile is $3, which means that 25 per cent of his customers are spending $3 or less. The upper quartile is $9, so 75 per cent of his customer spend $9 or less. Looking at the chart and the quartiles he can see that the majority of his customer spend quite small amounts. Check your knowledge 1 What could Amrit do to encourage his customers to spend more money without raising prices? 2 What other information could Amrit usefully collect and analyse about his customers that could help him expand his business organisation