First, consider deliberate thinking. Deliberate thinking is relatively slow, rule-based and explicit; a contemplative process of weighing pros and cons, gathering scientific or statistical evidence. It would appear that this makes for pretty solid decision-making.
Jul 24, 2015. Outliers increase the standard deviation. Mean is most affected by outliers, since all values in a sample are given the same weight when calculating mean. A value that is far removed from the mean is going to likely skew your results and increase the standard deviation. Say you have five values: 2, 1, 2, 1.5, and 2.1.
Nigel Clark, engineer. Views. The standard deviation is a calculated value of the square root of the variance which is an accumulation of each paired data set (data point less the mean) which is squared. The value is then divided by the number of data points. By adding a constant A, you adjust the mean by that constant and then subtract it out.