Discover what a log-normal distribution is, its financial applications, and how to calculate it, including using Excel for ...

Scientific calculators typically come with a built-in program for both the mean and standard deviation. These can also be determined by functions in spreadsheet programs such as Excel.

Standard Deviation indicates the volatility of the fund’s returns. Higher standard deviation means higher variation in returns and vice versa. In technical terms, it is a dispersion of returns from ...

In National 5 Lifeskills Maths standard deviation is a measure of consistency or spread of data. It is used as a comparison between different data sets.

The standard deviation is a formal measure of the tendency of the numbers in your list to vary – or deviate – from the mean. You can think of it as a measure of how "spread out" your numbers are.