Topic 4 Mid Topic Review

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional grid.

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

How do you determine the line of best fit?

Back

The line of best fit can be determined using statistical methods such as least squares regression, which minimizes the distance between the data points and the line.

Front

What is the purpose of using a line of best fit?

Back

The purpose of using a line of best fit is to make predictions about one variable based on the value of another variable.

Tags

CCSS.8.EE.B.5

Front

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

Back

Tags

CCSS.8.F.A.3

CCSS.8.EE.B.6

Front

What does the slope of a line indicate in a scatter plot?

Back

The slope of a line indicates the rate of change between the two variables; a positive slope means that as one variable increases, the other also increases.

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate in a scatter plot?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Tags

CCSS.8.EE.B.5

Front

How can you use a scatter plot to make predictions?

Back

You can use a scatter plot to make predictions by extending the line of best fit to estimate the value of one variable based on the value of another.

Front

What is the significance of outliers in a scatter plot?

Back

Outliers are data points that fall far from the trend of the other points; they can significantly affect the line of best fit and the overall analysis.

Front

What is the correlation coefficient?

Back

The correlation coefficient is a statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

Tags

CCSS.HSS.ID.C.8