What is the word for same number of values on either side of the center

Question

I really need this answer because I need to pass math

 

Answer 1

MEDIAN - SAME NUMBER OF VALUES LESS THAN AND GREATER THAN

 

EX:   1, 2, 3, 4, 7, 9, 10, 13, 14      

7 IS THE MEDIAN BECAUSE THERE ARE 4 VALUES BELOW, AND 4 VALUES ABOVE.