Answer:
The midpoint of the segment PQ is (3.5,2.5,-6.5) .
Explanation:
Since both points show clear difference where Q is +1 more in all digits which easily explains the mid point. Its by dividing 1 and 2 we get the answer 0.5 which is the half of 1 added to every digit starting from the P point since its lower than Q. Once added we find the midpoint.
I hope this helps!