Trend line, line of best fit and bivariate data, are terms associated with

1 bar graphs
2 circle graphs
3 histograms
4 scatter plots.

scatter plots

So you post a question then want people to answer it or u just gonna answer it for other people to get right???

Im confused...

The terms "trend line," "line of best fit," and "bivariate data" are associated with scatter plots.

In statistics, a scatter plot is a graphical representation of bivariate data, which means it involves two variables. The two variables are plotted as points on the graph, with one variable being represented on the x-axis and the other on the y-axis. Scatter plots are useful for visualizing the relationship between two variables and identifying any patterns or trends.

A trend line, also known as a line of best fit, is a line that summarizes the general trend or direction of the data points on a scatter plot. It helps to analyze the relationship between the two variables and make predictions or inferences.

To create a trend line or line of best fit, you can use various methods such as visual inspection, least squares regression, or other statistical techniques. The goal is to find the line that best represents the overall pattern of the data points and minimizes the overall distance between the line and the data points.

So, the correct answer is 4) scatter plots.