Scatter Plots and Correlation

Front

What is a scatter plot?

Back

A scatter plot 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 correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

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

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

How can you identify a positive relationship in a scatter plot?

Back

A positive relationship can be identified when the data points trend upwards from left to right.

Front

How can you identify a negative relationship in a scatter plot?

Back

A negative relationship can be identified when the data points trend downwards from left to right.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify patterns or trends.

Front

What does it mean if a scatter plot shows a cluster of points?

Back

A cluster of points indicates that there is a strong relationship between the two variables in that range.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far away from the general trend and can indicate anomalies or errors in data.

Front

How do you interpret the slope of a line of best fit in a scatter plot?

Back

The slope indicates the direction and strength of the relationship between the two variables.