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.
Standard Deviation in Excel. To use Excel to determine the sample standard deviation of a set of quantitative data, type these numbers into a group of adjacent cells in a spreadsheet. In an empty cell type what is in the quotation marks =STDEV.S(.