Mathematics
Mathematics, 21.12.2019 03:31, finedock

Agovernment agency has specialists who analyze the frequencies of letters of the alphabet in an attempt to decipher intercepted messages. in standard english text, a particular letter is used at a rate of 5.7%. a. find the mean and standard deviation for the number of times this letter will be found on a typical page of 1600 characters. muequals 91.2 (do not round.) sigmaequals 9.3 (round to one decimal place as needed.) b. in an intercepted message, a page of 1600 characters is found to have the letter occurring 102 times. is this unusual? \

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