Question: The leisure services committee of a local authority has seen its budget decline over the last few years and is currently having to consider closing a number of its leisure facilities - sports halls, small parks, museums and so on. One closure being considered is that of a small branch library in an outlying village. As a preliminary aspect of the decision some data has been collected on the number of people using the library and its facilities:
Calculate suitable measures of average and dispersion for this data.