Standard Deviation Calculator 2.1

Utilize this application to compute the standard deviation of a given dataset. In addition to the standard deviation, the tool provides insight into the following statistical metrics:

• Mean (average)
• Variance
• Population deviation
• Median
• Q1 & Q3

To add a value to the dataset, simply select "+Row". Once all data entries are complete, click on "Calculate". It's worth noting that the population deviation (n-1) is considered unbiased, whereas the standard deviation for a normal distribution (n) is considered biased.

For calculating the z-score, input a number into the designated tab and then click on "Find z-score". The z-score will be derived from the main table for reference.