Stdev Vs Variance. So now you ask what is the variance variance. On the other hand the standard deviation is the root mean square deviation.
The variance is defined as. Its symbol is σ the greek letter sigma the formula is easy. Variance is indicated by sigma squared σ2 and the standard deviation is marked by the symbol sigma σ.
Variance is a mathematical worth that depicts the changeability of perceptions from its number juggling mean.
Both measures reflect variability in a distribution but their units differ. So now you ask what is the variance variance. The variance is defined as. Moreover it is hard to compare because the unit of measurement is squared.
