People who show excessive emotionality, have excessive needs for praise, reassurance, and approval, and who constantly need to be the center of attention are most likely suffering from personality disorder.

narcissistic

Explanation:

Narcissistic personality disorder: In abnormal psychology, the term "narcissistic personality disorder" is described as one of the different types of personality disorders in which an individual is dealing with a mental condition whereby he or she experiences an inflated sense of one's own significance, troubled relationships, an intense need for excessive admiration & attention, and absence of empathy for someone else.

In the question above, the given statement represents narcissistic personality disorder.

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 !