Q:
# What Is the Symbol for Population Standard Deviation?

The Greek letter sigma is the commonly used mathematical symbol for population standard deviation. The Greek letter mu is also commonly used in calculations of the population standard deviation for non-overlapping populations.

Continue Reading
Credit:
Diana Hirsch
E+
Getty Images

The formula for calculating the population standard deviation is the sum of all values from i to N, where i is the initial value and N is the last value, as evaluated by the function of the square of the initial x value minus the value of mu. That sum is multiplied by 1/N, with the square root of the product providing the value for the population standard deviation represented by sigma. Mu is the mean of all values being considered for x.

Learn more about Statistics-
Q:
## How Do You Calculate the Relative Standard Deviation Percent?

A: To calculate the relative standard deviation, divide the standard deviation by the mean and then multiply the result by 100 to express it as a percentage. ... Full Answer >Filed Under: -
Q:
## What Is the Importance of Standard Deviation?

A: Standard deviation is a measure of variation in data. It allows comparison between two or more sets of data to determine if their averages are truly differ... Full Answer >Filed Under: -
Q:
## Why Do We Use Standard Deviation?

A: Standard deviation is a measure of the variation or diversity of scores in a set of data. It is used to determine how much data varies from the average of ... Full Answer >Filed Under: -
Q:
## How Is the Margin of Error Calculated?

A: The margin of error is calculated using two approaches: byÂ multiplying the critical value with the standard deviation of the statistic, or by multiplying ... Full Answer >Filed Under: