確率ジェネ

"Probability Calc" is a tool that calculates chances in lotteries, gacha pulls, and draws using statistical models.
Main features
• Hypergeometric distribution: chance of drawing hits
• Cumulative binomial distribution: chance of k hits in n trials
• Simple input with instant results
Recommended uses
• Estimate gacha pulls needed
• Pack-opening hit simulation
• Campaign win-rate check
• Game design and learning
Privacy
No login needed. All data stays on your device. Ads are minimal.