Scatter Plots

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 axis.

Tags

CCSS.8.SP.A.1

Front

What does the line of best fit represent in a scatter plot?

Back

The line of best fit represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Tags

CCSS.8.SP.A.2

Front

What is correlation in the context of scatter plots?

Back

Correlation refers to the degree to which two variables are related. It can be positive, negative, or no correlation.

Tags

CCSS.HSS.ID.B.5

Front

What does a positive correlation look like on a scatter plot?

Back

A positive correlation appears as an upward trend, where as one variable increases, the other variable also increases.

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation look like on a scatter plot?

Back

A negative correlation appears as a downward trend, where as one variable increases, the other variable decreases.

Tags

CCSS.HSS.ID.B.5

Front

What does no correlation mean in a scatter plot?

Back

No correlation means that there is no predictable pattern between the two variables; the data points are scattered randomly.

Tags

CCSS.HSF-LE.A.1B

Front

How do you determine the equation of the line of best fit?

Back

The equation of the line of best fit can be determined using statistical methods such as linear regression.

Tags

CCSS.8.EE.B.5

Front

What is the formula for the slope of a line?

Back

The slope (m) of a line is calculated as m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept in the equation of a line?

Back

The y-intercept is the value of y when x is 0, represented as 'b' in the equation y = mx + b.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the purpose of using a scatter plot?

Back

Scatter plots are used to visually assess the relationship between two variables and to identify trends, patterns, or outliers.

Tags

CCSS.8.SP.A.1