Probability Math Puzzles
4.7star
7.09K reviews
100K+
Downloads
Everyone
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About this game
This app offers over 90 probability math puzzles in three levels, from beginner to advanced. The intro puzzles are straightforward but some of the puzzles will be very challenging, even for people who have studied college-level probability -- try answering them all! If you get stuck, there's a hint at the bottom of each page, and you can easily skip puzzles (and return to them later) by swiping horizontally. Have fun!
This app is great practice for quantitative interviews (including quant, finance and tech interviews), for college-level probability classes, or for anyone interested in mathematical puzzles.
I've included a math parser so that you can type equations as answers: if the answer is 0.49^2, for example, you can type 0.49^2 or 0.49*0.49 without having to work out the multiplication yourself. Enjoy!
This app is great practice for quantitative interviews (including quant, finance and tech interviews), for college-level probability classes, or for anyone interested in mathematical puzzles.
I've included a math parser so that you can type equations as answers: if the answer is 0.49^2, for example, you can type 0.49^2 or 0.49*0.49 without having to work out the multiplication yourself. Enjoy!
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Ratings and reviews
4.8
6.77K reviews
A Google user
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October 14, 2019
The puzzles are fantastic, and the only possible improvement I could ask for is even more puzzles in the future. The app doesn't even have ads, which makes it just that much better! In my original review, I asked about a specific question about one of the problems I had trouble understanding. The developer (atorch) personally replied and tried to explain the flaw in my logic, and they were entirely correct and helpful. I want to thank them for this great application and for their amazing user interaction!
4 people found this review helpful
atorch
November 29, 2016
Hello, thank you for your review. What you write is true but that's not what the question is asking: I'm looking for an expected value, which is essentially a probability-weighted average. To be fair, the app does not teach you how to calculate expectations, so this may be a difficult question. Have a look at wikipedia's expected value article.
A Google user
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February 4, 2020
The game starts out deceiving simple bit soon gets more difficult (and interesting). I was college professor, teaching statistical analysis and this game was a wonderful experience and review. I would certainly recommend it to even a beginner to the study of probability math as well as high school and college students studying probabilities as well as math majors.
30 people found this review helpful
A Google user
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February 5, 2019
Extremely beautiful, meaningful, and valuable probability puzzles. If you are a student who is learning probability, or if you are a math (in this case probabilities) enthusiast, you will find this incomparably good. You will see lots of "classics", accompanied by other similarly engaging puzzles. Just grab a pen and several pieces of scratch paper. You don't need a calculator either. The program supports factorials and C(n, r) function.
10 people found this review helpful
What's new
This version includes translations in German and Spanish! Check out the app's github repo for more information (there's a link at the bottom of the app's main screen), and please get in touch if you're interested in translating the puzzles into other languages.