7, you divide the 14 by 2 because the qr is two times the length of gh, therefore 7 is two times the length of fh
Simple...
you have: (2,3) and (-2,6)
Using
-->>
Thus, your answer.
Mean=8.1 (add all numbers and divide by how many there r)
Median=9.25 (place all numbers in a chronological line and find the middle value)
Mode=9.2 (value that appears the most)
Range=10.5 (10.5-0)