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

Data Required for T-Value You can calculate the T-Value in Excel with the mean, standard deviation and degrees of freedom.

Determination There are several practical ways to calculate the mean and standard deviation. Scientific calculators typically come with a built-in program for both the mean and standard deviation.

How to calculate Standard Deviation in Excel The Standard Deviation is a term used in statistics. The term describes how much the numbers if a set of data vary from the mean.

Key Points Use Excel to calculate daily returns and standard deviation to gauge stock volatility. Annualize volatility by multiplying daily standard deviation by the square root of 252.