Skewness Calculator – Fisher-Pearson Coefficient
The old saying goes that numbers like averages can be misleading, which isn’t entirely accurate. Averages is simply poor storytellers. They present you with a … Read More
JSCalc
Grubbs Test Calculator
The thing about outliers is you have nine values that appear completely typical, then there’s one that doesn’t even come close. Maybe that’s not an … Read More
Modified Z-Score Outlier Calculator
There’s a way for you to use statistics to find outliers in your data: it’s called the modified z-score. It resolves the push-pull of suspicion … Read More
Outlier Detection Calculator – IQR, Z-Score, MAD
Sometimes there’s one number in the middle of all these numbers and they looks like a perfectly good set of data. Except then you see … Read More
T-Score Calculator
Raw Score: You take a test and get back an eighty-four, thinking it’s pretty good. Then you’re told that class average was seventy with a … Read More
Z-Score Comparison Calculator
You have an 84 on a math exam and a 710 on a verbal section. One is big, the other is little. Which one indicates … Read More
Sum of Squares Calculator
If you learned statistics, you probably did so using pencil-and-paper calculations. You entered values, you added them, you squared them, you checked if you dropped … Read More
Root Mean Square Calculator
In your house, most of energy comes as an AC swing with a frequency of 60 hertz (meaning it cycles between positive and negative 60 … Read More
Mean Absolute Deviation Calculator
The measure of standard deviation is what you typically learn first; it show up everywhere in textbooks. Another way to do this is with a … Read More
Coefficient of Variation Calculator
Two datasets has similar standard deviations, yet one is relatively stable and the other is chaotic. Dispersion metrics in raw form let you down. They … Read More