Acartia_Bogart
Posts: 2927
Joined: Sep. 2014
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| Quote (stevestory @ May 07 2018,16:24) | | Quote (N.Wells @ May 07 2018,17:21) | | Quote | | [from Joe] No one but an imbecile asks what the probability is there is a specific letter in some sentence. |
And code-breakers, of course, because frequencies of letters can be crucial in breaking codes that work by simple substitutions for specific letters. |
yep, substitution ciphers are easily broken by asking what the probability of a letter in a sentence is. |
And sometimes you can substitute two words with completely different meanings. Like ‘frequency’ and ‘wavelength’.
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