Many people using this medication do not have serious side effects. Tell your doctor immediately if any of these unlikely but serious side effects occur: vision changes (e.g., blurred vision), eye pain, easy bruising/bleeding, mental/mood changes, swelling of ankles /feet, unusual tiredness.
Standard Deviation and Variance. Deviation just means how far from the normal. Standard Deviation. The Standard Deviation is a measure of how spread out numbers are. Its symbol is Ï (the greek letter sigma) The formula is easy: it is the square root of the Variance.
Overview of how to calculate standard deviation. where â\sumâsum means sum of, xxxx is a value in the data set, xÂ¯\bar{x}âxâÂ¯ââ is the mean of the data set, and nnnn is the number of data points. The formula may look confusing, but it will make sense after we break it down.