App Detail » Probability Pro

What's New

- Formatting enhancements

App Description

Pop quiz: you flip a fair coin 50 times. What is the probability that it lands on heads at least 25 times?

The number of computations involved in answering that question is staggering. The formulas can cause nightmares.

"Probability Pro" will tell you that the answer is 55.61% instantly.

How about this classic? In a room of 23 people, what is the probability that at least two people share the same birthday? Believe it or not, it's 50.73%. This powerful application will explain why, and it will calculate the probability for any number of people.

How long would it take you to figure out the answers to those questions without "Probability Pro?" How much time do you want to spend checking your homework?

This application features a rich set of tutorials, examples and solvers for the following topics:

- Odds
- Survey Results
- Venn Diagrams
- Bayes' Theorem
- Permutations
- Combinations
- Taking Balls from Urns
- Replacement vs. Non-Replacement
- Independent Events
- Dice
- Roulette
- Lottery
- Poker
- General Card Problems
- Expected Value
- Birthday Problem
- Normal Distributions
- Poisson Distributions

Please note: there are multiple solvers, but there aren't solvers for every topic.

I welcome all comments, questions, and suggestions: [email protected]

Follow me on facebook for app news, tips, and free Math help:

www.facebook.com/lfeldmantutoring

Please check out my other applications:

ACT Math Prep
Algebra Pro
Calculus Pro
Finite Math Pro
Geometry Pro
Math Pro (six Math apps for the price of two!)
Physics Pro
PreCalculus Pro
SAT Math Prep
Statistics Pro

App Changes

• June 24, 2011 New version 2.6
• August 06, 2011 New version 2.7
• August 18, 2011 Price decrease: $0.99 -> FREE!
• August 21, 2011 Price increase: FREE! -> $0.99
• September 17, 2011 Price decrease: $0.99 -> FREE!
• September 19, 2011 Price increase: FREE! -> $0.99
• September 14, 2012 Price decrease: $0.99 -> FREE!
• September 21, 2012 Price increase: FREE! -> $0.99
• October 25, 2012 New version 2.8
• November 30, 2012 New version 2.9
• November 30, 2012 Price decrease: $0.99 -> FREE!
• December 04, 2012 Price increase: FREE! -> $0.99
• December 22, 2012 New version 3.0
• December 22, 2012 Price decrease: $0.99 -> FREE!
• December 29, 2012 Price increase: FREE! -> $0.99
• January 19, 2013 New version 3.1
• January 19, 2013 Price decrease: $0.99 -> FREE!
• January 21, 2013 Price increase: FREE! -> $0.99
• March 13, 2013 New version 3.2
• May 02, 2013 New version 3.3
• May 04, 2013 Price decrease: $0.99 -> FREE!
• May 07, 2013 Price increase: FREE! -> $0.99
• August 16, 2013 New version 3.4
• October 06, 2013 New version 3.5
• May 28, 2015 New version 3.7
• May 28, 2015 Price decrease: $0.99 -> FREE!
• May 31, 2015 Price increase: FREE! -> $0.99
• June 23, 2015 Price decrease: $0.99 -> FREE!
• June 23, 2015 Price increase: FREE! -> $0.99
• February 08, 2016 Price decrease: $0.99 -> FREE!
• February 16, 2016 Price increase: FREE! -> $0.99
• June 15, 2019 New version 4.6
• October 06, 2019 Price decrease: $0.99 -> FREE!
• December 10, 2020 Price increase: FREE! -> $0.99