Answer:
9 cakes
Explanation:
An outlier is a piece of data that is largely different from the overall trend. When the data is graphed, the outliers lie far away from the trend line or cluster of points.
In this case, most of the points are plotted between {0} and {6} cakes. The value of {9} cakes lies far from the rest of the graphed data. So, 9 cakes is our outlier.
I hope this helps you ^^
Good luck :)