FB 15 - 2-Way Tables and Scatterplots

Front

What is a 2-way table?

Back

A 2-way table is a statistical table that displays the frequency distribution of two categorical variables, allowing for the analysis of the relationship between them.

Tags

CCSS.8.SP.A.4

Front

What does a scatterplot represent?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables, with each point representing an observation.

Tags

CCSS.8.SP.A.1

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatterplot, minimizing the distance between the line and all the points.

Tags

CCSS.8.SP.A.2

Front

What does a correlation coefficient of r = 0 indicate?

Back

A correlation coefficient of r = 0 indicates no linear relationship between the two variables.

Tags

CCSS.HSS.ID.B.5

Front

What does a positive correlation look like on a scatterplot?

Back

A positive correlation on a scatterplot shows that as one variable increases, the other variable also tends to increase.

Tags

CCSS.HSS.ID.B.5

Front

What does a negative correlation look like on a scatterplot?

Back

A negative correlation on a scatterplot shows that as one variable increases, the other variable tends to decrease.

Tags

CCSS.HSS.ID.B.5

Front

What is the range of correlation coefficients?

Back

The range of correlation coefficients is from -1 to 1, where -1 indicates a perfect negative correlation, 1 indicates a perfect positive correlation, and 0 indicates no correlation.

Tags

CCSS.HSS.ID.B.5

Front

How can you determine the strength of a correlation?

Back

The strength of a correlation can be determined by the absolute value of the correlation coefficient: values closer to 1 or -1 indicate a stronger correlation.

Tags

CCSS.HSS.ID.B.5

Front

What does it mean if a scatterplot shows no relationship?

Back

If a scatterplot shows no relationship, the points are scattered randomly, indicating that changes in one variable do not affect the other.

Tags

CCSS.HSS.ID.B.5

Front

What is the purpose of using a 2-way table in statistics?

Back

A 2-way table is used to summarize and analyze the relationship between two categorical variables, making it easier to identify patterns and trends.

Tags

CCSS.8.SP.A.4