Mathematics, 22.07.2020 04:01 itzia00
A girl loves to receive mail, but only 5% of the family's letters are addressed to her. The recipient of each letter is independent of all other letters. Find the mean number of letters received by other members of the family prior to her receiving her second letter.
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A girl loves to receive mail, but only 5% of the family's letters are addressed to her. The recipien...
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