Description
TOOL FOR STATISTICS AND PROBABILITY THEORY.---------------------------
Features
---------------------------
- Distribution tool
- Statistical tests
- Descriptives
Besides these areas, the application supports saving, loading, and deleting datasets where applicable.
---------------------------
Distribution tool
---------------------------
The distribution tool offers the following features: plot the pdf/pmf, properties (like mean value, variance, and support), cumulative probability, point mass/density, quantiles, and generating/sampling from the distribution.
Discrete probability distributions: Binomial, Hypergeometric, Negative binomial (or Pascal as it is also called), Poisson, uniform, and Zipf
Continuous probability distributions: Beta, Cauchy, Chi^2 (Chi squarred), Exponential, F (or Fisher-Snedecor as it is also called), Gamma, Normal (or Gaussian as it is also called), Student's t, uniform, and Weibull
---------------------------
Statistical tests
---------------------------
- One way ANOVA
- Chi^2 tests: Pearson's Chi^2 test for independence and observed vs expected counts
- Correlation tests: Pearson's correlation and Spearman's correlation
- Student's t-tests: One sample and two sample (both homoscedastic and heteroscedastic are supported)
---------------------------
Descriptives
---------------------------
- Plot a histogram
- Summary statistics as: number of observations, min, max, mean, standard deviation, variance, median, skewness, and kurtosis
Charles
Sep 7, 2011 3:32:49 AM
WBC All I can say is: WOW!
David
Aug 3, 2011 5:36:33 AM
excellent app. very useful.
Laicey
May 14, 2011 12:07:20 AM
really useful
Javier
Apr 7, 2011 2:15:29 PM
It's an awesome app, though i'd love better graphing since it's very limited.
Paul
Mar 24, 2011 1:25:49 AM
Awesome! Can't believe it's free! Development wish list would be to include Weibull B10 calls for reliability, but I still use this a lot.
gatot
Mar 22, 2011 7:48:38 PM
Amazing!!!
Ananda
Mar 5, 2011 6:59:06 AM
Awesome app! Like having all the stats tables in my pocket. UI could use a little more polish.
Xirun
Feb 1, 2011 7:22:08 AM
it is free！
Sebastián Ignacio
Sep 17, 2010 5:38:51 AM
The best tool on my phone, realmente muy bueno!
David
Aug 24, 2010 6:32:37 PM
It is really useful!!! Extremely comprehensive and have very good functions!!