Answer:
<h2>a. A line graph presents continuous and linked data, while a scatter plot presents unlinked data.</h2>
Step-by-step explanation:
In this case, the first option is the correct answer because a line graph represents a certain amount of data, which is distributed using two variables (<em>x and y)</em>, and it has continuity, this means that each <em>(x,y) </em>representation is followed by another, and another, in a straight line. In other words, when the relation between variables is proportional, their representation is a graph.
On the other hand, a scatter plot is a diagram that display values for two variables, but they don't have such perfect order, therefore, they are not represented by a straight line. A scatter plot can show a average relation between variables, that help to determine the type of relation between.
<em>So, basically, the difference between is about the order of the data, one perfectly ordered, the other without such perfect order.</em>