Strength of Correlation Answers

Which correlation coefficient represents a moderate negative correlation?

Which describes the correlation shown?

Whose data had the strongest correlation?

Over five different weeks, Irina tracked the hours she spent exercising and the hours she spent playing video games. What is the strength of the correlation between the hours spent exercising and the hours spent playing video games?

Claudia records the hours she spent studying and her test scores for 5 tests.

Claudia records the hours she spent studying and her test scores for 5 tests.

strong negative correlationmoderate negative correlation✔ strong positive correlationmoderate positive correlation

✔ weakmoderatestrongperfect

an association between variables✔ a causation between variablesthe strength of the relationship

What type of relationship has his teacher discovered?

Which relationships would most likely be causal? Check all that apply.a positive correlation between time spent exercising and the number of calories burneda negative correlation between temperature and coat salesa positive correlation between time spent practicing free throws and free throw percentagea positive correlation between time spent on the phone with friends and the number of friendsa negative correlation between temperature and the number of speeding tickets