Scatterplots

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 grid.

Front

What does a positive relationship in a scatterplot indicate?

Back

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

Front

What does a negative relationship in a scatterplot indicate?

Back

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

Front

What is correlation in the context of scatterplots?

Back

Correlation refers to the strength and direction of the relationship between two variables as shown in a scatterplot.

Front

What is a weak correlation?

Back

A weak correlation means that the data points are spread out and do not closely follow a clear trend.

Front

What is a strong correlation?

Back

A strong correlation means that the data points are closely clustered around a line or curve, indicating a clear trend.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend in the scatterplot and estimating the value of one variable based on the value of the other.

Front

What does it mean if a scatterplot has no correlation?

Back

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

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually represent data, identify relationships, and make predictions based on observed trends.

Front

How do you identify a positive correlation in a scatterplot?

Back

A positive correlation is identified when the data points slope upwards from left to right.