Provide a Complete Description of Your Data An average or mean without a measure ... central tendency, variation, and shape of your data. Not using all three will result in an incomplete picture ...

For example, the normal distribution is a symmetrical distribution where the three measures of central tendency (mean ... A histogram will give you a visual picture of the data where any skewness ...

The main averages, which can also be referred to as measures of central tendency, are the mean, mode and median. Robert is preparing for his Mathematics GCSE exams. Each paper is marked out of 100.