Learning Objectives
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Chapter 9 - Statistics: summarising data
- understand why it is desirable to calculate summary measures for a set of data, and
what features of the data these measures might represent
- be able to define the mean, median and mode of a set of data, and to calculate
these by hand in simple cases
- be able to define the standard deviation, quartiles and mode of a set of data, and
to calculate these by hand in simple cases
- be able to interpret the summary measures in practical terms, and to make an
informed choice of the best measure to use in a given situation
- know what is meant by skewness, and be able to describe in qualitative terms the
skewness or symmetry of a distribution.