i have to find definitions and describe 208 words in my statistics class and for one of them it says:

describe the deviation from a pattern of a graph.

i don't actually get what it's asking me. i don't think it's pattern becuase i already have the definition for that.

when it says deviation, does it mean what deviation does to graphs.

If you have a noticeable deviation from an overall pattern of a graph, you may be referring to an "outlier" which is an observation falling outside that pattern.

I hope this helps and is what you were asking.