LineRegression vs Stats Solver by ChatStick

LREG – Linear Regression Equation Generator. Developed by Prof. Carlos França, the LREG is a free educational app created within the Educational Technologies Research Group (GTED) at the Federal University of Fronteira Sul (UFFS), Brazil. It provides an interactive environment to learn, apply, and understand the linear regression equation in a simple, intuitive, and precise way. The LREG allows users to input their own X and Y values, automatically generate the regression line equation (Y = A×X + B), display the correlation coefficient (R), and explore the linear relationship between variables — all in an instructive format that encourages mathematical reasoning. More than an app, LREG represents the GTED/UFFS commitment to pedagogical innovation and the promotion of accessible educational technologies for everyone. It is a non-commercial project based on the philosophy of “doing good for the sake of good”, emphasizing human learning and ethical technology.

Stats Solver helps students, teachers, and analysts compute statistics quickly and understand the results. What you can do: - Calculate core statistics instantly: mean, median, mode, variance, standard deviation, quartiles, IQR, min/max, range, and more. - Build grouped frequency tables with relative and cumulative frequencies. - Use probability tools including factorial, permutation, combination, binomial probability, z-score, normal distribution, t-score, poisson, and uniform distribution. - Unlock advanced statistics tools such as covariance, correlation coefficient, linear regression, outlier detection, skewness, kurtosis, confidence interval, z-test, t-test, chi-square test, and ANOVA. - Visualize data with charts like histogram, bar chart, and normal curve. - Learn with step-by-step explanations for selected calculations. - Import data from CSV/TXT and export results back to CSV. - Save and pin datasets for faster reuse. - Keep a searchable history of your calculations. - Customize decimal precision, sample/population mode, haptics, and app theme. Built for learning and productivity, Stats Solver combines practical calculators with clear explanations so you can move from input to insight in seconds. Premium (one-time purchase): - Remove all ads - Unlock advanced tools and premium formulas - Access full step-by-step learning features - Save more datasets and use premium workflows - Includes future premium features with no subscription