10 Questions
What can be concluded about the relationship between the two quantities if the correlation coefficient is 0.91?
There is a strong relationship between the two quantities.
What type of correlation is represented by the scatter plot with a strong positive correlation?
C
What is the purpose of computing the Pearson coefficient r?
To determine the strength of the linear relationship.
What can be concluded about the variables of the study if the Pearson coefficient r is close to 1?
The variables have a strong positive relationship.
What is the relationship between the age of the gravestone and the diameter of the lichen?
As the age of the gravestone increases, the diameter of the lichen increases.
What is the purpose of the study involving the number of bacteria and their ages?
To determine the relationship between the number of bacteria and their ages.
What can be concluded about the number of bacteria and their ages if the correlation coefficient is close to 1?
The number of bacteria increases as their ages increase.
What is the interpretation of a scatter plot with a strong positive correlation?
As one variable increases, the other variable also increases.
What is the main difference between a strong positive correlation and a strong negative correlation?
The direction of the relationship.
What is the purpose of Pearson's correlation coefficient?
To measure the strength and direction of the linear relationship between two variables.
Collect and analyze data on Facebook friends and weight, then create a scatterplot to visualize the relationship between the two variables. Identify the variables and describe the scatter of points.
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