The scatter plot displays jimmy height over a few years.what was jimmy height when he was 15 years old?

To determine Jimmy's height when he was 15 years old, you would need to look at the scatter plot and find the point on the graph that corresponds to the age of 15 years. The height value at that point would be Jimmy's height when he was 15 years old.

The provided context does not mention Jimmy's height when he was 15 years. I cannot extract the requested data from the provided context.