Here is a list of the best 4 free programs in statistics..
Dedicated to professionals with extensive experience in the sector, as well as students, this programs collection offers solutions to day-to-day work of statesmen.
Statistics Problem Solver: Can solve statistical problems and generate step-by-step solutions
Statistics Probem Solver help is only a few clicks away. This amazing computer program not only solves your statistical problems for you, but it also shows you how to solve them by demonstrating the various steps and formulas that are involved in solving those problems.
Visual Probability: Calculation and drawing of probability functions
Use Visual Probability to compute and graph probability density functions, cumulative distribution functions, survival functions and hazard functions, and get quantile values, means, variances of ten more distributions.
Visual Stats: a statistics software to implement data analysis and multivariate statistical analysis
Features of Visual Stats:
Excel-like data editor is easy to use.
Probability analysis - compute and graph probability density function values, cumulative distribution function values, survival function values, hazard function values, quantile values, means and variances..
Compute descriptive statistics of selected data.
Compare means - one sample t test, independent-samples t test and paired-samples t test.
Compare variances - one sample and two samples.
Variance analysis - one-way ANOVA and two-way ANOVA.
Jarque Bera test.
Non-parametric tests, including one sample Chi-square test, two samples Chi-square test, one sample K-S test, two samples K-S test, sign test, Wilcoxon signed rank test, Mann Whitney U test.
Math Processor: Solve different types of problems related to arithmatic, statistics, geometry, trigonometry, Booelan algebra, number theory
Math Processor (MP) helps you solve different types of problems ranging from arithmetic to statistics, geometry, trigonometry, Booelan algebra, number theory and many other allied subjects. It is free and open source!
Besides the command-line, MP provides GUI tools called Easy Kits to make the core engine more accessible to less experienced users.