Standard Deviation
The standard deviation, which serves as a measure of the spread of values X1, X2, ..., XN is defined as:
Note:
The the lowercase Greek letter sigma σ is used to represent
the standard deviation of a population while the letter s is used to denote the standard deviation of a sample taken from that population.
Related Topics:
Example:
Find the standard deviation s for the numbers 3, 12, 9, 4, and 2.
Solution:
Related Topics: