scatter plots and line of best fit

Front

What is a scatter plot?

Back

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

Front

What does the line of best fit represent in a scatter plot?

Back

The line of best fit is a straight line that best represents the data on a scatter plot, indicating the trend of the data points.

Front

What is positive correlation in a scatter plot?

Back

Positive correlation occurs when an increase in one variable corresponds to an increase in another variable, resulting in an upward trend.

Front

What is negative correlation in a scatter plot?

Back

Negative correlation occurs when an increase in one variable corresponds to a decrease in another variable, resulting in a downward trend.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means there is no discernible relationship between the two variables, and the data points do not show any trend.

Front

How can you identify a positive correlation in a scatter plot?

Back

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

Front

How can you identify a negative correlation in a scatter plot?

Back

A negative correlation is identified when the data points slope downwards from left to right.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to make predictions about one variable based on the value of another variable.

Front

What does it mean if a line of best fit is not accurate?

Back

If a line of best fit is not accurate, it means that the line does not closely follow the trend of the data points, leading to poor predictions.

Front

What is the first step in creating a scatter plot?

Back

The first step in creating a scatter plot is to collect and organize the data for the two variables you want to compare.