11. Correlation

Scatterplots & Intro to Correlation

Multiple Choice
When preparing a scatterplot, which variable is typically placed on the horizontal ( $x$ ) axis?
37
views
Multiple Choice
In the context of scatterplots and correlation, which statement is correct?
2
views
Multiple Choice
Which of the following best describes the relationship between two variables in a scatterplot that shows points closely clustered around a straight line that slopes upward from left to right?
36
views
Multiple Choice
When examining a scatterplot, how can you determine if there is a relationship between two variables?
33
views
Multiple Choice
Which statement about correlation is false?
2
views
Multiple Choice
Which of the following best describes a scatterplot and its primary use in statistics?
50
views
Multiple Choice
Which of the following scatterplots best shows an outlier in both the $x$ - and $y$ -direction?
42
views
Multiple Choice
Which of the following scatterplots best illustrates an outlier that is extreme in both the $x$ - and $y$ -direction?
27
views
Multiple Choice
When comparing the boxplots of two groups, which of the following should be done?
32
views
Multiple Choice
In the context of scatterplots and correlation, what is a spurious correlation?
4
views
Multiple Choice
Given several scatterplots, which of the following statements about the calculated correlation coefficient $r$ is correct?
31
views
Multiple Choice
Which type of visualization is most appropriate for evaluating the relationship between two quantitative variables?
36
views
Multiple Choice
In the context of scatterplots and correlation, which statement best describes how correlation and causation differ?
3
views
Multiple Choice
In a scatterplot, which description best represents a positive correlation between $x$ and $y$ ?
2
views
Multiple Choice
In a scatterplot, what does a negative correlation between variables $x$ and $y$ mean?
3
views