Use the image to answer the question.
A scatterplot shows the number of hours studied versus test grade.
The horizontal axis shows the number of hours studied, ranging from 0 to 10 in increments of 1. The vertical axis shows the test grade, ranging from 0 to 100 in increments of 5, starting with a jump from 0 to 35. A kink is shown on the vertical axis close to origin. A dot is plotted at 0.5 on the horizontal axis and 45 on the vertical axis. A loosely packed cluster of data plots is plotted between 1 to 4.5 on the horizontal axis and 77 and 98 on the vertical axis.
A math teacher gave a math test. Interpret the scatterplot to determine which point is the outlier.
=
Responses
(1,78)
left parenthesis 1 comma 78 right parenthesis
(0.5,45)
left parenthesis 0.5 comma 45 right parenthesis
(4.5,97)
left parenthesis 4.5 comma 97 right parenthesis
(2.5,87)