Frank it's not about a figure being correct - and yes the mean ( correct word ) is calculated by adding up all the individual values and dividing it by the number of cases - but it's about whether the figure is meaningful. So the median gives a better idea - as Greatnan says, means can be really misleading.Deliberately do in some cases. One measure of how representative a mean is, is to look at the range between the lowest and highest values- the larger that gap, the less helpful the mean.
You must be old if you have a purse or a wallet.
Has anyone else noticed their energy levels change as they've got older?




