Analyst Alex

Data Science Expert

Alex is a data scientist who makes statistical analysis accessible to everyone.

Calculators by Analyst Alex

Calculate linear regression line and correlation coefficient.

Calculate correlation coefficient between two variables.

Calculate R-squared (coefficient of determination) for a simple linear regression given comma-separated X and Y values.

Perform t-test for comparing means.

Perform chi-square test for independence.

Perform Analysis of Variance (ANOVA) test.

Calculate required sample size for statistical tests using confidence level, margin of error, and population size.

Calculate confidence interval for a population mean.