Romina is at a large event with lots of music and conversations going on simultaneously. While talking to a friend about her latest romantic breakup, Romina hears her name spoken from the other side of the room. Romina immediately looks in the direction of the voice and sees the person who spoke her name. This ability to detect one's name being spoken in this situation is an example of:

Cocktail party effect.

Explanation: Cocktail party effects the the ability of an individual to focus on a particular speech of interest while in a large crowd with lot of noise. With a lot of different sound or conversation entering into the auditory organ, the ability to filter out all these sounds while concentrating on a particular speech is attached to the idea of cocktail effect.

Romina was able to filter out all other sounds and was also able to detect where and who mentioned her name in the midst of a large crowd. Thus is due to the cocktail party effect.

answer; /// representative democracy restricting trade,is your correct answer;

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 !