Actuarial TI89 App with Step by Step Solutions

Solve Actuarial questions stepwise using the TI89 Calculator

Scroll down to select APP and observe the provided
Step by Step solutions to the right. It is worldwide
the only Math software that can do this!!!   

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Solve Actuarial Math problems instantly...Step by Step

  • Joint, Marginal and Conditional Probabilities for both Continuous and Discrete distributions.

  • Find cdf given pdf and vice versa.

  • 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)

  • 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. 

  • Newly added: Double Exponential, Cauchy and Bivariate Normal 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, 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.

  • 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

  • Normal Probability Plot with Quantiles

  • Weibull, Gamma and Beta Distributions.

  • Ideal for quick review and homework check.

  • Easy to use. Just plug in and the correct answer shows.

  • Read the Documentation

  • Read the ACTME User Guide


 Sample Capabilities:

The main menu
Smoothing using the Simple Exponential Method
Simple Moving Average
Confidence Intervals -
with ease and steps
CI for a mean with known
Standard Deviation
Statistical Tests -
with ease and steps
Z Test for proportions Chi Square Goodness of Fit Test
Analyze data -
with ease and steps
Find Mean, geom. mean, mode, median, std dev, variance, range Choose among Scatter plots, x-y plots, box plots, histograms.
Distributions -
with ease and steps
Binomial Distribution Normal Distribution
Regressions -
with ease and steps
Linear Regression Residuals with detailed analysis
Compute Sample Size -
with ease and steps
Sample size for CI for mean with know standard deviation
Marginal and Conditional   Distribution
Just enter the table and press enter.
Simulation :
Law of Large Numbers
Flip a coin many times and see how its head proportion gets closer to 1/2
Random Variables -
with ease and steps
Probabilities -
with ease and steps
Probability checker for independent and disjoint events. View rules and examples of probabilities.  Compute expected values