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.
The mean is displayed by Shift and and the standard deviation by Shift and. Avoid pressing Shift and AC between these operations as this clears the statistical memory. There is another button on many calculators. This uses the divisor n rather than n - 1 in the calculation of the standard deviation.