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 association in a scatterplot indicate?

Back

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

Front

What does a negative linear association in a scatterplot indicate?

Back

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

Front

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

Back

It means that there is no clear relationship between the two variables, and changes in one do not predict changes in the other.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend line or pattern in the scatterplot and estimating the value based on the known data points.

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 is the significance of the slope in a linear relationship?

Back

The slope indicates the rate of change between the two variables; a steeper slope means a stronger relationship.

Front

How do you identify a negative linear relationship in a scatterplot?

Back

A negative linear relationship is identified when the data points slope downwards from left to right.

Front

What is the role of the x-axis and y-axis in a scatterplot?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

Front

What does it mean if a scatterplot has a cluster of points?

Back

A cluster of points indicates that there is a concentration of data values in that area, suggesting a potential relationship.