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Mathematics, 19.10.2020 14:01 mollietennis

The Central Intelligence Agency (CIA) has specialists who analyze the frequencies of letters of the alphabet in an attempt to decipher intercepted messages. In standard English text, the letter n is used at a rate of 6.65%. Find the mean and standard deviation for the number of times the letter n will be found on atypical page of 2300 characters.

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