Index of Coincidence (IoC)
Concept
A statistical property used to measure the likelihood of two randomly picked letters being the same. It's higher for decrypted English text (around 0.067) than for random text (around 0.038).
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A statistical property used to measure the likelihood of two randomly picked letters being the same. It's higher for decrypted English text (around 0.067) than for random text (around 0.038).
