At this point, we know that standard deviation is a measure of risk (or volatility) and that the number of standard deviations determines the reliability. So here's how it works in the investing world. Let's say you own a mutual fund that has a standard deviation of 21% and an average annual return of 8%.
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The Central Science laboratory (CSL) was the UK's foremost public sector laboratory in the fields of agriculture, food and the environment. As an Executive Agency of the Department for Environment, Food and Rural Affairs (Defra), CSL was responsible for the delivery of science in support of Government objectives.