Unit 7 Scatterplots Flashcard

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 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 predictable relationship between the two variables; the data points do not show any pattern.

Front

How can you identify a linear relationship in a scatterplot?

Back

A linear relationship can be identified if the data points form a straight line or a pattern that closely resembles a straight line.

Front

What is the purpose of using scatterplots?

Back

Scatterplots are used to visually represent the relationship between two variables and to identify trends, patterns, or correlations.

Front

What is an ordered pair in the context of scatterplots?

Back

An ordered pair is a pair of numbers (x, y) that represents a point on the scatterplot, where 'x' is the value of the independent variable and 'y' is the value of the dependent variable.

Front

What does it mean if a scatterplot has a strong correlation?

Back

A strong correlation means that the data points are closely clustered around a line, indicating a strong relationship between the two variables.

Front

What does it mean if a scatterplot has a weak correlation?

Back

A weak correlation means that the data points are more spread out and do not closely follow a line, indicating a weaker relationship between the two variables.

Front

How can you determine the number of hours worked from a scatterplot?

Back

You can determine the number of hours worked by finding the corresponding point on the scatterplot that matches the given earnings.