One way to check your scheme’s worth is to measure how volatile it has been in the past. Gauge your scheme’s standard deviation (SD). SD is a statistical measure of volatility caused by a variety of factors that are in your fund manager’s control (stock or sector selection) or those beyond her ambit (macro economy). You will get to know your scheme’s SD from its factsheet every month or on from third party fund rating websites. … [Read more...] about How reliable is standard deviation in gauging a fund’s volatility?