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Find the arithmetic mean an of an-1=3.9 and an+1=7.1

Find the arithmetic mean an of an-1=3.9 and an+1=7.1
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Find the arithmetic mean an of an-1=3.9 and an+1=7.1

User Bogertron
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2 Answers

6 votes

The arithmetic mean is 5.5

So therefor the answer is 5.5

User Clayton
by
8.2k points
3 votes
a[n] = (a[n-1] +a[n+1])/2 = (3.9 +7.1)/2 = 11/2 = 5.5
User Yevhenii Semenov
by
7.7k points
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