Drawing an accurate trend line is crucial for identifying patterns and making predictions from data. A trend line, also known as a line of best fit, represents the general direction in which a set of data points is moving. The key is to minimize the distance between the line and the data points. Ideally, the line should have roughly an equal number of points above and below it. Remember, it doesn't need to pass through all the points, but it should capture the overall trend.
Match the term with its definition:
| Term | Definition |
|---|---|
| 1. Trend Line | A. The point where the trend line crosses the y-axis. |
| 2. Scatter Plot | B. A graph that displays data points as dots to show the relationship between two variables. |
| 3. Correlation | C. A line on a graph showing the general direction that a group of points seem to be heading. |
| 4. Positive Correlation | D. A relationship between two variables in which both variables move in the same direction. |
| 5. Y-intercept | E. A relationship between two variables in which one variable increases as the other decreases. |
(Answers: 1-C, 2-B, 3-relationship, 4-D, 5-A)
A trend line is also known as a line of ______ ______. It helps to visualize the ______ in a scatter plot. The goal is to have an equal number of points ______ and ______ the line. This minimizes the overall ______ between the line and the data points.
(Answers: best fit, trend, above, below, distance)
Why is it important to have an equal number of data points above and below the trend line when trying to model a data set?
Please log in to post your answer.
Log InEarn 2 Points for answering. If your answer is selected as the best, you'll get +20 Points! 🚀