Edward A. Ross, a professor of sociology at both Stanford and the University of Wisconsin, played a significant role in providing "scientific" support for the movement.

The eugenics movement

Explanation:

Edward A. Ross was a professor of sociology at both Stanford and the University of Wisconsin.  He was an American sociologist, eugenicist, economist, and criminologist. Edward Ross was born in Virden, Illinois, and was a strong supporter of eugenics in his academic career. He was known to always speak strongly against immigration, and a strong supporter of the "race self-annihilation" with one of his speech leading to the call for his immediate resignation from Stanford University where he taught as a professor.  

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 !

answer; integrative;