Interpreting graphs and scatterplots

Front

What is a line of best fit?

Back

A line that best represents the data on a scatterplot, showing the trend of the data points.

Front

How do you determine if a line is an accurate line of best fit?

Back

By checking if the line minimizes the distance between itself and all the data points.

Front

What does a positive correlation indicate in a graph?

Back

As one variable increases, the other variable also increases.

Front

What does a negative correlation indicate in a graph?

Back

As one variable increases, the other variable decreases.

Front

What does no correlation mean?

Back

There is no discernible relationship between the two variables.

Front

What is a scatterplot?

Back

A graph that uses dots to represent the values obtained for two different variables.

Front

What does it mean if a graph is skewed right?

Back

The tail on the right side of the distribution is longer or fatter than the left side.

Front

What does it mean if a graph is skewed left?

Back

The tail on the left side of the distribution is longer or fatter than the right side.

Front

What is a symmetric distribution?

Back

A distribution where the left and right sides are mirror images of each other.

Front

What is a normal distribution?

Back

A bell-shaped distribution where most of the data points cluster around the mean.