Question

A particular country has 55 total states. If the areas of 30 states are added and the sum is divided by 30, the result is 196,582 square kilometers. Determine whether this result is a statistic or a parameter and why.

Answer 1

It is just a parameter because a quantity whose value is selected for the particular circumstances and in relation to which other variable quantities may be expressed. The quantity, 30, is just selected from the 55 total states.

If the areas of 50 states are added and the sum is divided by 50, then this would be the average area of the state which is statistics.