Scatterplots

Front

What is a scatterplot?

Back

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

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 does a negative correlation indicate in a scatterplot?

Back

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

Front

What does no correlation mean in a scatterplot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not affect the other.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend in the data points and estimating where a new data point would fall based on that trend.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually represent data, identify trends, and analyze relationships between variables.

Front

What is the x-axis in a scatterplot?

Back

The x-axis is the horizontal axis that typically represents the independent variable.

Front

What is the y-axis in a scatterplot?

Back

The y-axis is the vertical axis that typically represents the dependent variable.

Front

How do you identify the trend in a scatterplot?

Back

You identify the trend by observing the overall direction of the data points, whether they rise, fall, or remain constant.

Front

What is an outlier in a scatterplot?

Back

An outlier is a data point that is significantly different from the other points, often lying far away from the trend.