What is the symbol for variance and standard deviation
The symbol of the variance of a random variable is „σ²“, the symbol of the empirical variance of a sample is „s²“. The squared deviations are 36, 9, 0, 16, 25 – their sum is 86. How do you write variance and standard deviation? To figure out the variance, divide the sum, 82.5, by N-1, which is the sample size (in this case 10) minus 1.
DA: 78 PA: 49 MOZ Rank: 75