If we are supposed to give you like a life situation that matches the equation then I have one:
You have 42 watermelons and you need to divide them into equal groups. Let n equal the number of watermelons in each group. There are 6 groups in total. How many watermelons are in each group? (solve for n).
If this is not what you were looking for then my apologies.
I think the answer is B) The mean of the 5th and 6th values
Step-by-step explanation:
-9+15=6, -6+15=9
So,
6 < 9