Not so much an interactive app or game, but the puzzles are deep and there's enough to keep you thinking for a long time. The solution input method is good too as it accepts multiple formats like 0.5 or 1/2 or 50%, as well as marking the puzzle as correct once it's been done.
Great puzzle selection - both entertaining and challenging. Math parser is very basic, and will not, for example, recognize ".5" but will understand "0.5". Graphics and overall UX are extremely bare-bones, with little effort made to appeal to aesthetics. I'd volunteer to help, but they don't have a good feedback system.
An intelligently designed application that not only teaches the basics of probability but challenges one's understanding of Probability. In case of failing to solve the puzzle, help is limited to hint and solution in not provided rapidly. Instead, through interesting and encouraging phrases one is motivated to find the right answer to the puzzle... Simply Brilliant...
Nice math app to help you think about probability. Helps sharpen your understanding. Has a math parser, so you can enter things like 3.2* 4^2, rather than having to give numeric answer. Three levels of puzzles to solve, but even some of the simple ones can be challenging.
Having never taken a probability course, at any level, I find some of these very difficult, but very fun. I've literally spent days on some of them, not giving up until the a-ha hit. It's so rewarding to finally figure it out.. especially since the program taunts (and encourages) you.
Great collection of probability puzzles with enough variation to keep even expert statisticians occupied for many hours. But please, can't we escape political posturing within the universal realm of mathematics? It's saddening that even math geeks are being overwhelmed by their own personality flaws.
Updated math parser, links to probability notes, and a new easy puzzle.
Challenging brain quizzes and math puzzles for every mathematical operation
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Math games make learning fun! Addition, Subtraction, Multiplication & Division!