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(V.S.) "I first bought one of these programs for my college algebra class over 2 years ago and loved it. I do not think I would have passed my class without it. Since then I have bought 10 of these programs and find uses for them everyday in my job. I used the statistics and the business programs for my Six Sigma master certificate 6 months ago. Let me tell you, these programs were a lifesaver as my six sigma black belt project concentrated heavily on statistics. I would highly recommend these programs to anyone who is looking to succeed."

(S.P.) "Just wanted to say thanks for a great product and great support, I passed business statistics thanks to you guys, my F went from a 59 to a 80 thanks to the 96 I got on my Finale. All because your product was easy to use."

TI89 Online Calculator

TI89 Online Graphing Calculator

TI89 Online Calculator with Steps

Step by Step Implicit Differentiation Online Calculator

Step by Step Calculus Calculator

Step by Step Integral Calculator

Step by Step Derivative Calculator

Step by Step Calculator

Texas Instruments 89

Slideshows

TI92 Plus | TI89 | TI89 Titanium | Voyage 200 |

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Description

- Decision Analysis: Step by Step Analysis of Payoff Matrices using Maximax, Minimax, Maximin, Expected Values. For your convenience, we created an all in 1 Explorer.
- Forecasting: Forcast and Project into the future using tools such as 8 Regressions Methods, Smoothing (Simple Exponential or using Seeds) or Simple Moving Averages.
- Find Step by Step solutions for most Statistics topics:
- Step by Step Confidence Intervals for mean, proportion, 2 means, 2 proportions, variance, slope, etc.
- Compute Sample Sizes for Confidence Intervals.
- Step by Step Tests of Significance (Z-Tests, T-Tests, ChiSquare Goodness of Fit and Independence tests, 2-sample T tests, 2 proportion Z tests, for Variance, etc)
- Step by Step Non-Parametric Tests: Sign Test, Rank Sum Test, Signed Rank Test, Kruskal Wallis Test.
- Step by Step F Test for 2 variances
- Step by Step ANOVA to test multiple means.
- Step by Step 2-way ANOVA.
- Read about how Confidence Intervals behave.
- Read about how Significant Tests: Type 1 Error, Type 2 Error, Power of a Test.
- Much easier handling than other Statistics packages:

Choose to enter Data or Statistic values. Select Significant/Confidence Levels easily. - Distributions: plot them, shade them where desired, compute probabilities, etc.
- Includes Binomial, Negative Binomial, Geometric, Normal, Student-t, Exponential, Poisson, Uniform, Sampling, Multinomial, Hypergeometric, F-, Chi-Square and more Distributions.
- Probability Checker for independent events, disjoint events.

Also solves P(A or B)=P(A)+P(B)-P(A and B) for the unknown. - Regressions: Linear , Quadratic, Cubic, Quartic, Sinusoidal, Logarithmic, Exponential, Power, MedMed
- Study Residuals and plot them
- Step by Step Derive the Coefficients for a Linear Regression Line, the Coefficient of Determination and the Correlation Coefficient.
- Read Theorems such as Central Limit Theorem, Random Variables, about Confidence Intervals and Tests, etc
- Also: Z-score Solver, Random Number Generator, etc
- 1 or 2 variable stats on mean, mode, median, standard deviation, variance, range, harmonic and geometric mean
- Plots: BoxPlots, x-y Plots, Scatter Plots, Histograms, Modified Box Plot
- View a simulation of the Law of Large Numbers, Read about Simpson Paradox.
- Compute Marginal and Conditional Probabilities.
- Read About Surveys, Samples, Population, Parameter, Statistics, Observational Studies vs Experiments.
- Random Variables: Compute Variance, Expected Value and Standard Deviation.
- Additional Modules on: Probability, Combinatorics, Percentages, Ratios, Proportions, Exponential and Logarithmic Functions, Exponential Function Solver, Expand and Condense Logarithms, Algebra, Equation Solver
- Multiple Regression Analysis Step by Step incl. Statistical Tests (optional table displays as in other software packages), Confidence Intervals and Prediction Intervals.
- ANOVA and 2way ANOVA - Step by Step
- Control Charts
- Step by Step Power-, Beta- , Type 2 Error Analysis for Z Tests for Means and Proportions.
- Non-Parametric Tests for 1 sample: Sign Test, Rank Sum Test
- Friedman Test - Step by Step
- Analytic Hierarchy Process - Step by Step
- Normal Probability Plot with Quantiles
- Weibull, Gamma and Beta Distributions.
- Joint, Marginal and Conditional Probabilities for both Continuous and Discrete distributions.
- Find cdf given pdf and vice versa.
- R Chart, Xbar Chart, Control Charts: Centerlines, UCL, LCL, plots.
- Compute Gamma(n)
- Ideal for quick review and homework check.
- Easy to use. Just plug in and the correct answer shows.

Documentation

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