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.
is most ofter used to indicate a sum. If you have a list of numbers, say a1=9, a2=7, a3=1 and a4=7 then. is used in statistics to mean standard deviation. This is a measure of the spread or variation in a collection of numbers. For example if the 30 students in your class write a test and everyone gets between 70 and 80 then the standard deviation of the 30 scores would be quite small. If, however, the 30 scores range form the 40's to the 90's then the standard deviation would be larger.