StaTool - Statistic and Probability Tools for Windows
Probability of two events A and B
For A and B events, we can calculate some probability values when we know some other probability values.
Total Probability Law and Bayes' Theorem
We have a set of incompatible Ai events as a finite partition of the probability space.
Also, we have the event B that is compatible with each Ai.
If we know the probabilities p(Ai) and p(B / Ai), then StaTool calculates p(B) and p( Ai / B)
Two variables statistic
Allows us to calculate statistical data for two numeric variables X and Y.
We can calculate 5 types of functions for regression analysis using the least squared method:
1) Linear
2) Logarithmic
3) Exponential
4) Power
5) Quadratic
StaTool calculates the following statistical data:
1) Means of X and Y.
2) Standard deviations of X and Y.
3) Variances of X and Y.
4) Covariance.
5) Coefficient of correlation.
6) Formula of regression curve.
7) Estimation of X or Y.
8) Graphic (scatter plot and regression curve) and printing.
- We can save and open data as a file (E2V extension).
- Also, we can print data and results.
One variable statistic
Allows us to calculate statistical data for one numeric variable X.
Data can be ungrouped or grouped (intervals or classes).
StaTool calculates the following statistical data:
1) Mean.
2) Median.
3) Mode.
4) Standard deviation.
5) Variance.
6) Coefficient of variation.
7) Skewness.
8) Kurtosis.
9) Moments (0th to 4th, about mean and origin).
10) Quartiles, deciles and percentiles and his inverses.
11) Graphic (bar and histogram chart) and printing.
- We can save and open data as a file (E1V extension).
- Also, we can print data and results.
Probability distributions
StaTool has 6 types of probability distribution:
1) Normal.
2) t-Student.
3) Chi-Square.
4) F-Snedecor.
5) Binomial.
6) Poisson.
Confidence interval estimation
StaTool has 9 types of Confidence Intervals:
One population:
1) Mean of population (known population variance).
2) Mean of population (unknown population variance).
3) Variance of population.
4) Ratio of population.
Two populations:
5) Mean difference of two populations (known population variances).
6) Mean difference of two populations (unknown and equal population variances).
7) Mean difference of two populations (unknown and different population variances).
8) Variance ratio of two populations.
9) Ratio difference of two populations.
Hypothesis testing
StaTool has 9 types of Hypothesis testing:
One population:
1) Mean of population (known population variance).
2) Mean of population (unknown population variance).
3) Variance of population.
4) Ratio of population.
Two populations:
5) Mean difference of two populations (known population variances).
6) Mean difference of two populations (unknown and equal population variances).
7) Mean difference of two populations (unknown and different population variances).
8) Variance ratio of two populations.
9) Ratio difference of two populations.
Free to try - 15 $ / 9 € to buy
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Ref. STAT - Version 1.7 - O.S.: Windows XP / Vista / Windows 7
Hypothesis testing.
Total Probability Law
Bayes' Theorem.
Bar and histogram charts.
One variable statistic.
Confidence interval estimation.
Probability distributions.
- Normal - t-Student - Chi-Square
- F-Snedecor - Binomial - Poisson.
Two variables statistic.
5 curves regression:
- Linear, logarithmic,
- Exponential, power and quadratic.
Probability of two events.
Features
> 7 types of statistic and probability calculations
> Graphics
> Regression analysis
> Probability distributions
> Easy and fast to use
> User's manual.
Free to try - 15 $ / 9 € to buy
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