TNReady Math Practice

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 grid.

Front

How do you interpret a trend line in a scatter plot?

Back

A trend line indicates the general direction of the data points in a scatter plot, helping to predict values based on the observed relationship.

Front

What does it mean if a scatter plot shows no association?

Back

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

Front

What is a positive association in a scatter plot?

Back

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

Front

What is a negative association in a scatter plot?

Back

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

Front

How can you predict values using a trend line?

Back

You can predict values by finding the corresponding point on the trend line for a given value of one variable.

Front

What is the importance of identifying outliers in a scatter plot?

Back

Outliers can skew the interpretation of the data and may indicate unusual observations that do not fit the general trend.

Front

What does it mean if the time to drive to work is not related to hours exercising?

Back

It means that changes in the number of hours a person exercises do not affect the time it takes to drive to work.

Front

How do you determine the number of chapters in a book from a scatter plot?

Back

You can use the trend line to estimate the number of chapters based on the total number of pages.

Front

What is the significance of the y-axis in a scatter plot?

Back

The y-axis typically represents the dependent variable, which is affected by changes in the independent variable on the x-axis.