Better measures of the distribution of scores are the variance and standard deviation. The variance (2) is the sum of the squares of the deviations of the individual test scores (xi) from the mean () divided by the number of scores (n). The standard deviation () is the square root of the variance.
Reducing triglyceride levels is one of the main mechanisms by which fish oil omega-3 fatty acids improve cardiovascular health. With regards to cholesterol, fish oil omega-3 fatty acids can increase the level of âgoodâ cholesterol while lowering âbadâ cholesterol. However, this relationship is not straightforward. In fact, fish oil can raise LDL cholesterol in people with high blood triglyceride levels.
The researchers theorize that it is the unique molecular structure of krill oil that gives it its potent effects. In general, fish oil has not been found to lower LDL cholesterol unless it is substituted for dietary saturated fat that, by itself, increases LDL. I would not recommend krill oil or other omega-3s for the purpose of lowering LDL, and you should consult your physician before considering it.