📊 Statistics

Z-Score Calculator

Calculate the z-score for any data point. Enter the value, mean, and standard deviation. Get the z-s

Percentile Calculator

Calculate any percentile from a dataset. Enter your numbers and target percentile. Get the result in

Chi-Square Test

Calculate chi-square statistic, degrees of freedom, and p-value. Enter observed and expected values

Correlation Coefficient

Calculate the Pearson correlation coefficient (r) and R-squared. Enter X and Y data to measure the s

Linear Regression

Calculate the line of best fit with slope, intercept, R-squared, and equation. Enter X and Y values