Scatter Plots Review

Front

What is a scatter plot?

Back

A graph that shows the relationship of two data sets.

Front

What does a trend line in a scatter plot represent?

Back

A trend line shows the general direction or pattern of the data points in a scatter plot.

Front

How can you use a trend line to make predictions?

Back

You can extend the trend line to estimate values for data points not directly represented in the scatter plot.

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, minimizing the distance of all points from the line.

Front

If a scatter plot shows a positive correlation, what does that mean?

Back

It means that as one variable increases, the other variable also tends to increase.

Front

If a scatter plot shows a negative correlation, what does that mean?

Back

It means that as one variable increases, the other variable tends to decrease.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots help visualize the relationship between two variables and identify trends or patterns.

Front

How do you determine the number of chapters in a book with 140 pages using a scatter plot?

Back

You locate 140 pages on the x-axis, then find the corresponding value on the trend line to predict the number of chapters.

Front

What does it mean if the points on a scatter plot are widely spread out?

Back

It indicates a weak correlation between the two variables being analyzed.

Front

What is an example of a situation where a scatter plot would be useful?

Back

Analyzing the relationship between study hours and exam scores.