The Central Intelligence Agency CIA has specialists who analyze the frequencies of letters of the alphabet in an attempt to

Question

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 s is used at a rate of 5 74 Find the mean and standard deviation for the number of times the letter s will be found on a typical page of 2100 characters Round solutions to three decimal places if necessary Hint This is a Binomial experiment l

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