#404 Scatter Plots

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 in a scatter plot indicate?

Back

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

Front

What does a negative correlation in a scatter plot indicate?

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 determine the trend from a scatter plot?

Back

You can determine the trend by observing the direction of the data points; if they rise together, it's positive; if one rises while the other falls, it's negative.

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 the points on a scatter plot are tightly clustered?

Back

If the points are tightly clustered, it indicates a strong correlation between the two variables.

Front

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

Back

If the points are widely spread out, it indicates a weak correlation between the two variables.

Front

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

Back

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

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, showing the overall trend.