Don't understand what to do for this question

Question

benlindquist · Answer

what is it

xximhisgirlxx · Answer

If the number 3 were added to the set {2, 3, 3, 3, 4, 5, 5}, which central tendency would change? 
	mode
	range
	median
	mean *************

I'm thinking the mean though.

benlindquist · Answer

i think thats right anyone know for sure?

atsie · Answer

Gee, I don't even know what a central tendency is.
Hang on. Have to pull out my friend...Google

solomonzelman · Answer

Your median would be still (3+4)/2
the average of the two middle values.

3 was still the most frequent in the set,
and whether you add a 3 to a set or not,
your mode is still 3.

The range is max-min, and regardless of
whether you add a 3 or not, your range is
max-min=5-2=3

solomonzelman · Answer

The mean,
(2+3+3+3+4+5+5)/7
(25)/7 $\ne$ 3

atsie · Answer

Follow @SolomonZelman 
I'm lost as of now.

solomonzelman · Answer

Therefore the mean would change after adding a 3

xximhisgirlxx · Answer

So, it would be mean?

benlindquist · Answer

@BellaBlueBird

solomonzelman · Answer

Yes, exactly, as you have said from the beginning. I went through the logic of it, just in case.

xximhisgirlxx · Answer

Thank you!

solomonzelman · Answer

You are welcome!