A set of data may have one mode, more than one mode, or no mode at all. Other popular measures of central tendency include the mean, or the average of a set, and the median, the middle value in a set.

91 ÷ 10 = 9.1. The mean number of potatoes in a bag is 9.1 Practise working out mean, mode and range from a frequency table with this quiz. You may need a pen and paper to help you with your answers.

The mean is the average that appears in a set of data. The median is the midway point above (below) where 50% of the values in the data occur. The mode refers to the most frequently observed value ...