Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data. Each point represents an observation in the dataset.

Tags

CCSS.8.SP.A.1

Front

What does correlation mean in a scatter plot?

Back

Correlation refers to the relationship between two variables in a scatter plot, indicating how one variable may change in relation to another.

Tags

CCSS.HSS.ID.B.5

Front

What are the types of correlation?

Back

1. Strong Positive: As one variable increases, the other also increases. 2. Strong Negative: As one variable increases, the other decreases. 3. Weak Positive: A slight increase in one variable leads to a slight increase in the other. 4. Weak Negative: A slight increase in one variable leads to a slight decrease in the other.

Tags

CCSS.HSS.ID.B.5

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 trend of the data.

Tags

CCSS.8.EE.B.5

Front

How do you determine the slope of a line in a scatter plot?

Back

The slope is determined by the change in the y-values divided by the change in the x-values between two points on the line.

Tags

CCSS.8.EE.B.5

Front

What is the slope-intercept form of a linear equation?

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does the y-intercept represent in a scatter plot?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x is zero.

Tags

CCSS.HSF.LE.B.5

Front

How can you estimate values using a scatter plot?

Back

You can estimate values by finding the corresponding point on the line of best fit for a given x-value.

Front

What is the significance of a strong negative correlation?

Back

A strong negative correlation indicates that as one variable increases, the other variable tends to decrease significantly.

Tags

CCSS.HSS.ID.B.5

Front

What is the equation of a line with a slope of -5/3 and a y-intercept of 40?

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3