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Answer :

Answer: 4.5

First eight natural numbers = 1, 2, 3, 4, 5, 6, 7, 8

[tex]Mean = \frac{SumOfAllObservations}{NumberOfObservations} \\\\Mean = \frac{1 + 2 + 3 + 4 + 5 + 6 + 7 + 8}{8}\\\\Mean = \frac{36}{8}\\\\Mean = 4.5[/tex] Answer.