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 axis.

Front

What does a positive correlation in a scatterplot indicate?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

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 variable do not predict changes in the other.

Front

How can you identify a strong positive correlation in a scatterplot?

Back

A strong positive correlation is identified when the data points closely follow a straight line that slopes upwards.

Front

How can you identify a weak negative correlation in a scatterplot?

Back

A weak negative correlation is identified when the data points are scattered but show a slight downward trend.

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 type of correlation is represented by the relationship between temperature and ice cream sales?

Back

Positive correlation.

Front

What type of correlation is represented by the relationship between the number of siblings and weight?

Back

No correlation.

Front

What does a scatterplot with a cloud of points indicate?

Back

A cloud of points indicates no correlation between the variables.