/jp/ - Otaku Culture

>>	Anonymous Wed Nov 25 22:38:54 2020 No.29734881 [View] File: 25 KB, 680x382, 41a.jpg [View same] [iqdb] [saucenao] [google] >Matt says

Anonymous Tue Jan 21 17:08:11 2020 No.22831763 [View]
File: 25 KB, 680x382, 41a.jpg [View same] [iqdb] [saucenao] [google]

sorry you all got trolled but 70-80% retention isn't optimal. the forgetting index is NOT just the opposite of your retention. the formula is:
retention= -(forgetting index)/ln(1-(forgetting index))

that means the optimal forgetting index range of 20% to 30% actually translates to an optimal retention rate of ...
84% to 90%

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