8.5C,8.11A, 8.5D, 8.7A Test December 13

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional plane.

Front

What does a positive correlation indicate in a scatterplot?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What is a linear relationship in the context of scatterplots?

Back

A linear relationship is when the data points in a scatterplot can be approximated by a straight line.

Front

How do you interpret the slope of a line in a scatterplot?

Back

The slope indicates the rate of change between the two variables; a positive slope means both variables increase together, while a negative slope means one variable increases as the other decreases.

Front

What does it mean if there is no apparent association in a scatterplot?

Back

It means that there is no clear pattern or relationship between the two variables being plotted.

Front

How can you predict a value using a scatterplot?

Back

You can predict a value by finding the corresponding point on the scatterplot that aligns with the given value of one variable.

Front

What is the significance of the x-axis and y-axis in a scatterplot?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two variables and to identify trends, patterns, or correlations.

Front

What does it mean if a scatterplot shows a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable tends to decrease.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.