Thread: Variance and STandard deviation

1. Variance and STandard deviation

What is the difference between the two in statistics ?

pls include clear explanation
Thanks in advance...

2. Originally Posted by mathbuoy
What is the difference between the two in statistics ?

pls include clear explanation
Thanks in advance...
Hi
The positive square root of the average of the sum of the squares of all the deviations from the mean is called the standard deviation.
There r some formulas for grouped and ungrouped data to find the standard deviation
Variance is the square of the standard deviation
ok