Which correlation coefficient represents a moderate negative correlation?
strong negative correlationmoderate negative correlation✔ strong positive correlationmoderate positive 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?
–0.85–0.840.84✔ 0.85
✔ weakmoderatestrongperfect
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
Hope researches the impact of one variable on another. She graphs the data from her research and sees that the data forms a shape that is similar to an arch. What conclusion can Hope draw from her graph?
Hope can conclude that there is an association between the variables because the graph shows a clear pattern. However, because the pattern is a non-linear arch, she can conclude there is no correlation. Finally, she cannot conclude that there is a causal relationship, as association does not imply causation.
an association between variables✔ a causation between variablesthe strength of the relationship
Sample Response: Because the graph shows a pattern that is an arch shape, Hope can conclude that there is an association between the variables. However, because the relationship is not linear, there is no correlation. The pattern shows that as one variable changes, the other variable changes in the same way. This does not imply that a change in one variable causes the change in the other variable to happen. Hope cannot conclude that there is a causal relationship. What did you include in your re
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