Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a type of graph that uses dots to represent the values obtained for two different variables - one plotted along the x-axis and the other plotted along the y-axis.

Tags

CCSS.8.SP.A.1

Front

What does a point on a scatter plot represent?

Back

A point on a scatter plot represents the values of two variables for a single observation or data point.

Tags

CCSS.8.SP.A.1

Front

What is an outlier in a scatter plot?

Back

An outlier is a point that is far outside the main cluster of points in a scatter plot, indicating it does not fit the general pattern of the data.

Tags

CCSS.8.SP.A.1

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.

Tags

CCSS.HSS.ID.B.5

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.

Tags

CCSS.HSS.ID.B.5

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one variable do not predict changes in the other.

Tags

CCSS.HSS.ID.B.5

Front

How can you identify the correlation in a scatter plot?

Back

You can identify the correlation by observing the direction of the points: if they trend upwards, it's positive; if they trend downwards, it's negative; if they are scattered randomly, there's no correlation.

Tags

CCSS.HSS.ID.B.5

Front

What is the purpose of drawing a line of best fit in a scatter plot?

Back

The line of best fit summarizes the relationship between the two variables and helps to predict values.

Tags

CCSS.8.SP.A.2

Front

What does the slope of the line of best fit represent?

Back

The slope of the line of best fit represents the rate of change between the two variables.

Tags

CCSS.8.EE.B.5

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.F.A.3

CCSS.8.EE.B.6