Open Face Chinese Calculator

★★★★★ Works great Works as described. Numbers seem accurate. Great for learning the probabilities behind common situations.

★★★★★ Very nice My husband and I were discussing how to calculate the odds of hitting the card you need with multiple draws left, and we couldn't come up with the calculation off the top of our heads. We headed to google and found that what we needed was a hypergeometric distribution, and there is an online calculator and even some statistics apps, but they didn't have exactly the right cumulative distributions needed and were kind of a headache. Long story short it is worth a couple bucks to just download this app. It tells you the percentages, you don't have to remember what each statistical variable associates with in your OFC game, and you don't have to count how many cards are left in the deck. You can run some experiments to see what moves are the best which is enlightening and fun. Thank you.