Answer:
To know the right person to go to when in need of something.
Explanation:
<span>I believe the degrees of freedom in this case is 19. As I understand N is the number of participants as there are 20 students. Subtract one for statistical purposes puts that number at 19. The other option might have to deal with the total number of variables however I believe N is the basis here.</span>
Generally, prevailing winds blow east-west rather than north-south. This happens because Earth’s rotation generates what is known as the Coriolis effect makes wind systems twist counterclockwise in the northern hemisphere and clockwise in the Southern Hemisphere.
Technological Change. First radio broadcast of Message: President Calvin Coolidge, 1923. First television broadcast of Message: President Harry Truman, 1947.
