The Royal Badge of Wales, a coat of arms designed on behalf of the National Assembly for Wales, will feature on the banknotes alongside symbols representing the other three home nations.
Best Answer: It is possible for the standard deviation to be greater than the mean, even if all data points are positive numbers. However, the only way for this to happen is for most, if not all, data points to be at the extremes (with one extreme much greater in magnitude than the other) and nothing near the average.
In general, the more variation there is from the average, or the less clustered are observations around the mean, the higher the standard deviation. And this can matter. If, for example, these are two groups of students taking the same test, the two graphs present rather different pictures of how each set of students is performing.