Researchers conducting a longitudinal study in oregon, which followed a large group of adolescents, coined the label for syndromes on the less severe end of the continuum of eating disorders that don't meet the full criteria for anorexia or bulimia nervosa. partial-syndrome eating disorders borderline eating disorders pica disorder marginal eating disorders

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

can you explain it better