The scatter plot shows the relationship between the test scores of a group of students and the number of hours they spend on social media in a week.

part a: what is the group of points labeled a called? what is the point labeled b called? give a possible reason for the presence of point b.
part b: describe the association between a student’s test scores and the number of hours spent on social media

Part A:

The group of points labelled A are called CLUSTERS. The points in this group form a distinct group.
The point labelled B is called OUTLIER. This point doesn't seem to 'join' in with the clusters

Possible reason for point B is there are students who still managed high score in the test while spending large amount of time on social media

PART B:

The relationship is a negative correlation. The longer a student spent time on social media, the lower their score in a test.

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2

The answer is a 5/20 because if u add all of the marbles there are 20 and there are 5 red marbles so 5/20 is the answer mark as brainliest