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CalEst is an innovative, comprehensive and visually attractive package of statistics and probability. It can be used to perform different types of calculations and analysis. It includes several tutorials to help you in the learning process as well as to explore the application of Statistics and Probability in real-life problems.

CalEst has been designed to have a friendly interface and intuitive approach to work, speeding the learning process.

CalEst runs under the different versions of Windows®. With CalEst you can export/import your data to/from other application such as Word®, Excel®, Minitab®, Statgraphics®, etc. Also, you can save/copy the graphics and results to create your own reports.

CalEst Environment

CalEst Features


    • Measurements of central tendency (mean, median, mode, standard deviation, percentiles, variance, skewness, kurtosis, geometric mean, harmonic mean, etc.)
    • Process capability
    • Control charts (x-R y x-S)
    • Six Sigma (normal distribution)

Measurements (options)

Design of experiments

    • 2k Factorial
    • Plackett-Burman
    • Central composite
    • Box-Behnken
    • General Factorial

Design of experiments


    • Hypothesis test
      • One mean (t, z, Chi-squared)
      • Two means (independent, paired; z, t, F)
      • Proportions
      • Variance (Chi-squared, F)
      • Non parametric (K-S test, sign test)
    • Confidence intervals
    • ANOVA
    • Chi-squared test (bondad de ajuste, tables)

Hypothesis test


    • Histogram
    • Polygon-cumulative frequency
    • Frequency Polygons
    • Empirical distribution FDA
    • Histogram + Polygon
    • Pie chart
    • Dot plot
    • Stem-and-Leaf plot
    • Box plot
    • Dispersion plot
    • Frequency table



    • Simple
    • Multiple
    • Polynomial


Distributions (density and cumulative)

    • Normal
    • Weibull
    • Gamma
    • Exponential
    • Beta
    • t-Student
    • Chi-squared
    • F
    • Lognormal
    • Logistic
    • Extreme value
    • Uniform (continuous and discrete)
    • Bernoulli
    • Binomial
    • Poisson
    • Calculator
    • Probability paper

Normal distribution


    • Sort data (from low to high, from high to low, shuffling data)
    • Operations between data columns (normalization, logarithmic, exponential, inverse, etc.)
    • Random Number Generator
    • Number generator following a function
    • Counting techniques


    • Probability games
      • Toss
      • A die
      • Mission to Mars (robot, artificial intelligence)
      • Two dice
      • Coin and die
      • Toss (binomial distribution)
      • Trees (marbles)
      • Noise and image processing
    • Hypothesis test
      • Theorem of central limit(dice)
      • Motivation (context)
      • Iris identification
    • Quality Control
      • Catapult
      • Helicopter

Tutorial: Trees