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.
Standard deviation (SD). This describes the spread of values in the sample. The sample standard deviation, s, is a random quantity -- it varies from sample to sample -- but it stays the same on average when the sample size increases. Standard error of the mean (SE). This is the standard deviation of the sample mean, , and describes its accuracy as an estimate of the population mean, . When the sample size increases, the estimator is based on more information and becomes more accurate, so its standard error decreases.