Question

Ok so I was asked to what type of statistical measure is this? The 2 statistical measures are parameter or statistic.

The data I am given is 2 groups: 51 patients with no evidence of heart disease and 320 patients with narrowing of the arteries. I am given each of the patients cholesterol and triglycerides levels.

The question is: Compute the range of values for cholesterol and triglcerides for each of the two groups. How do they compare? What type of statistical measure is this?

I have the other parts done but Idk if its a statistic or parameter please help