Strength of Correlation Answers

Which r-value represents the weakest correlation?

Over five different weeks, Maria tracked how much money she spent on dining out and how much money she saved.Amount Spent on Dining Out ($)Amount Saved That Week ($)20150451106095351307580

Which relationships would most likely be causal? Select two options.

Which r-value represents the most moderate correlation?

A financial advisor studies the relationship between the number of missed credit card payments and a person’s credit score. The scatterplot shows points tightly clustered around a downward-sloping line.

Which best describes the strength of a model with an r-value of 0.29?

The number of times a player has golfed in one’s lifetime is compared to the number of strokes it takes the player to complete 18 holes. The correlation coefficient relating the two variables is –0.26.

Which r-value represents the strongest correlation?

A 2-column table with 4 rows. The first column is labeled x with entries 0, 5, 10, 15. The second column is labeled y with entries 15, 10, 5, 0.

The table shows the time a patient spends at the dentist and the amount of the bill.