Scatterplot Predictions

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 the context of a scatterplot?

Back

No correlation means that there is no apparent relationship between the two variables being plotted.

Front

How can you predict values using a scatterplot?

Back

You can predict values by finding the trend line or pattern in the scatterplot and using it to estimate the value of one variable based on the other.

Front

What is the purpose of using scatterplots in data analysis?

Back

Scatterplots are used to visually assess the relationship between two variables, identify trends, and make predictions.

Front

What is the significance of the slope in a scatterplot?

Back

The slope indicates the direction and strength of the relationship between the two variables; a steeper slope suggests a stronger relationship.

Front

How do outliers affect a scatterplot?

Back

Outliers can skew the interpretation of the data, affecting the trend line and potentially leading to inaccurate predictions.

Front

What is the difference between independent and dependent variables in a scatterplot?

Back

The independent variable is plotted on the x-axis and is manipulated, while the dependent variable is plotted on the y-axis and is measured.

Front

What does the term 'trend line' refer to in a scatterplot?

Back

A trend line is a line that best represents the data points in a scatterplot, showing the general direction of the data.