The interface is perfect and the app is priced very reasonably. But, I would like to see some additional distributions included. In particular, it would be nice to see the Gamma, Inverse Gamma, inverse exponential, Negative Binomial and bivariate normal Distribution Also, raw and central moments would also be nice. Keep up the good work.
Estimation application downloads and cost
Description
Simple to use, Randov finds percentiles and cumulative probabilities for some common probability distributions: normal (Gaussian), Snedecors F, Students t, exponential, Poisson, binomial, and geometric. With this mobile application, you wont ever need to use a statistics textbook appendix, formula, or an expensive graphing calculator to find probabilities/p-values!
In the screenshot below, a z score calculation is shown: the mean and standard deviation are set to 0 and 1, respectively. The chance of a z-score less than 1.791 (input value) equals 0.963 (output value). Also, The z-score corresponding to a cumulative probability of 0.348 (input value) equals -0.391 (output value).
In addition, two random number generators (discrete and continuous) are included.
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In the screenshot below, a z score calculation is shown: the mean and standard deviation are set to 0 and 1, respectively. The chance of a z-score less than 1.791 (input value) equals 0.963 (output value). Also, The z-score corresponding to a cumulative probability of 0.348 (input value) equals -0.391 (output value).
In addition, two random number generators (discrete and continuous) are included.
Randov Probability Calculator screenshorts
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Application availability
Available in countries
| Country | Price |
|---|---|
| Canada | 1.39 CAD |
| China | 6 CNY |
| France | 1.09 EUR |
| Germany | 1.09 EUR |
| Italy | 1.09 EUR |
| Netherlands | 1.09 EUR |
| Portugal | 1.09 EUR |
| Spain | 1.09 EUR |
| Poland | 1.09 EUR |
| UK | 0.99 GBP |
| India | 79 INR |
| Japan | 120 JPY |
| Poland | 4.99 PLN |
| Russia | 75 RUB |
| Turkey | 4.49 TRY |
| USA | 0.99 USD |
| Korea, Republic Of | 1.09 USD |
| Ukraine | 0.99 USD |
Available for devices
iPhoneFirstGen, iPodTouchFirstGen, iPodTouchSecondGen, iPhone3G, iPhone3GS, iPadWifi, iPad3G, iPhone4, iPodTouchThirdGen, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,Reviews
Good application
Poor app
Very little info on different functions. Doesnt support iPhone 5 or later screen ratios.
Things I want
Useful, I would love it if it had a list of equations, and a list of variables and what they mean...
Nice solid app
A help screen would be nice though but other than that this is nice.
If you could increase the range of the probabilities (to extend beyond 3 sigma or so) perhaps using scientific notation, that would be awesome. Otherwise, nice app.
Very useful
Thanks to an attentive developer. Nice work. Still examining all the functions.
Amazing little calculator
I teach statistics and econometrics and frequently need a p-value calculator in the classroom. Ive been waiting for one that generates p-values for a variety of commonly used distributions. Randov does exactly that, and is beautifully laid out as well. Kudos to the developer for creating a very useful app with great aesthetics and a simple user interface.
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