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Look at this set of 5 numbers: 1 2 2 2 8 By how much would the mean increase if the number 9 were added to the set?
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5 votes
Look at this set of 5 numbers:

1 2 2 2 8
By how much would the mean increase if the number 9 were added to the set?

User Cartalot
by
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1 Answer

4 votes
The current mean is 3 (15/3)

adding 9 would make the mean 4 (24/6)

therefore the mean would increase by 1
User Smallredstone
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