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Please help me with 1 & 3!

Please help me with 1 & 3!-example-1
User Sestus
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2 Answers

5 votes
They both added up all the numbers for each column and then divided by how many numbers there were in total. For example, 1 + 9 + 11 = 21. 21/3 (How many numbers there were added total) would average to 7.
User Matthias Bayer
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2 votes
on three does it tells you the data
User Salep
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