DA #3 REDO 8.5CD, 8.11A

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a positive linear relationship in a scatterplot indicate?

Back

A positive linear relationship indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative linear relationship in a scatterplot indicate?

Back

A negative linear relationship indicates that as one variable increases, the other variable tends to decrease.

Front

How can you predict a value using a scatterplot?

Back

You can predict a value by finding the corresponding point on the scatterplot that aligns with the given value on one axis.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two variables and to identify trends, patterns, or correlations.

Front

What does it mean if there is no apparent association in a scatterplot?

Back

It means that there is no clear pattern or relationship between the two variables being plotted.

Front

What is the significance of the line of best fit in a scatterplot?

Back

The line of best fit is a straight line that best represents the data points in a scatterplot, helping to predict values and understand the relationship.

Front

How do you determine the strength of a relationship in a scatterplot?

Back

The strength of a relationship can be determined by how closely the data points cluster around the line of best fit; tighter clusters indicate a stronger relationship.

Front

What is an example of a positive linear relationship?

Back

An example is the relationship between hours studied and exam scores, where more study time generally leads to higher scores.

Front

What is an example of a negative linear relationship?

Back

An example is the relationship between the amount of gas in a tank and the distance a car can travel, where less gas means less distance.