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.

Tags

CCSS.8.EE.B.5

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.

Tags

CCSS.HSF-LE.A.1B

Front

What does a positive correlation indicate in a graph?

Back

As one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation indicate in a graph?

Back

As one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

Front

What does no correlation mean?

Back

There is no discernible relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

What is a scatterplot?

Back

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

Tags

CCSS.8.SP.A.1

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.