Sample Variance
The Sample Variance, s², is used to calculate how varied a sample is, and it's useful to estimate the Population Variance.
s²
Population Variance
Since the Sample Variance is kind of estimation, so its formula is bit different.
Chi-square Goodness-of-fit Test
Goodness-of-fit Test is good for testing a One-row Frequency Table.The test shows how well certain…
One-row Frequency Table
L-I-N-E-R
Chi-squared Homogeneity Test
For the Chi-square homogeneity test we’re gonna use this online calculator instead:▶ Chi-Square Calculator
▶ Chi-Square Calculator
Chi-Squared Testing
Chi is written as greek letter 𝐗, looks like x, reads "kai".Chi-squared is written as 𝐗².
𝐗
𝐗²