Standard Deviation

1. Advantages of
Standard Deviation

2. • What is Standard deviation
• Key points of Standard deviation
• Types of Standard deviation
• Use in daily life
• Example
• Advantages of Standard Deviation
• Conclusion
Index

3. A standard deviation (or σ) is a measure of how the data is in relation to the
mean. A standard deviation close to zero indicates that data points are close to
the mean, where as a high or low standard deviation indicates data points are
respectively above or below the mean.
Standard deviation
formula

4. Key points of Standard deviation
• Standard deviation is the measure of dispersion of a set of data from its mean.
• Standard deviation is denoted by σ
• Standard deviation measures the dispersion of a dataset relative to its
mean.
• It is calculated as the square root of the variance.

5. Types of Standard deviation
There are two types of standard deviation ,
Frequency series
Simple series

6. Test Scores
Marketing
Human Resources
Weather Forecasting
Use in daily life
We can use standard deviation in our daily life.

7. Example

8. Advantages of Standard Deviation
• Shows how much data is clustered around a mean value
• It gives a more accurate idea of how the data is distributed
• Not as affected by extreme values

9. Conclusio
n
• Today’s discussion is that what is standard deviation, key points of standard
deviation, types of standard deviation, use standard deviation in daily life, some
examples and the last one is advantage of standard deviation.
• standard deviation might be a simple formula, but it has many uses in daily life. It
mostly used in the finance sector to calculate the risk. The standard deviation is a
much popular method.