Scatter Plots Formative

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

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the general direction of the data points.

Front

How can you determine the line of best fit visually?

Back

You can determine the line of best fit visually by drawing a line that has approximately equal numbers of points above and below it.

Front

What is the purpose of using a trend line in a scatter plot?

Back

The purpose of using a trend line is to make predictions about one variable based on the value of another variable.

Front

If a scatter plot shows a downward trend, what type of correlation does it represent?

Back

A downward trend in a scatter plot represents a negative correlation.

Front

How can you use a scatter plot to make predictions?

Back

You can use a scatter plot to make predictions by extending the trend line to estimate values for variables not directly measured.

Front

What does it mean if a scatter plot has points that are widely spread out?

Back

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