A. The group of points labeled N is called a scatter plot or a cluster of data points. The point labeled M is called an outlier.
B. The association between students' test scores and the number of hours they play computer games shows a mixed or somewhat weak negative correlation.
What is an outlier?
Part A:
An outlier is a data point that significantly deviates from the overall pattern of the data. In this case, point M (1, 100) is an outlier because it is located far away from the other data points and is circled to highlight its uniqueness.
A possible reason for the presence of point M could be that the student represented by that data point had an exceptional test score of 100 despite studying for only 1 hour. This data point may represent an exceptional or unique situation that deviates from the general trend observed in the other data points.
Part B:
The association between students' test scores and the number of hours they play computer games shows a mixed or somewhat weak negative correlation. As the number of hours spent playing computer games increases, there seems to be a trend toward lower test scores, though this relationship is not extremely strong. The majority of the data points seem to cluster with lower test scores at higher hours of gaming, but there are also instances of higher test scores at higher gaming hours, though these instances are less frequent.
The scatter plot shows the relationship between the test scores of a group of students and the number of hours they play computer games in a week: On a grid, Label Hours Studying on x axis and Test Scores on y axis. The title of the graph is Test Scores and Hours Studying. The scale on the x axis shows the numbers from 0 to 10 at increments of 1, and the scale on the y axis shows numbers from 0 to 100 at increments of 10. Dots are made at the ordered pairs 1.1, 10 and 2, 25 and 3.1, 10.1 and 4, 30 and 4, 45 and 5, 45 and 6, 25 and 6.5, 60 and 7, 45 and 7.5, 50 and 7.5, 75 and 8, 60 and 8.5, 75 and 9, 60. The ordered pair 1, 100 is circled and labeled as M. All the other points are put in an oval and labeled as N.
Part A: What is the group of points labeled N called? (3 points) What is the point labeled M called? Give a possible reason for the presence of point M. (6 points) Part B: In a complete sentences of two, describe the association between students' test scores and the number of hours they play computer games. (10 points)