Question

which trend line has been drawn correctly using the divide - center method?

Explanation:

Step1: Understand the divide - center method

The divide - center method involves dividing the data points into two groups (usually by a vertical line) and finding the center (average \(x\) and \(y\) values) of each group. The trend line should pass through these two center points.

Step2: Analyze each graph

• In the first graph, the trend line passes through the center points (orange dots) of the two groups divided by the vertical line.
• In the second graph, the trend line does not pass through the center point of the lower - right group.
• In the third graph, the trend line does not pass through the center point of the upper - right group.

Answer:

The first graph (the left - most one among the options) has the trend line drawn correctly using the divide - center method.