The number of grams of calorie-free sodium in a restaurant meal is compared to the total number of calories in the meal. The correlation coefficient relating the two variables is 0.74. Which best describes the strength of the correlation, and what is true about the causation between the variables? It is a weak positive correlation, and it is not likely causal. It is a weak positive correlation, and it is likely causal. It is a strong positive correlation,and it is not likely causal. It is a strong positive correlation, and it is likely causal.
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I would go with C on this one; unless it was a perfect 1, I don't think it would be causal.
Step-by-step explanation:
0.74 is a pretty strong correlation. Remember correlation can be between -1 and 1, with -1 implying a strong negative correlation and 1 implying a strong positive correlation. since 0.74 is close to 1, you can narrow it down between C and D. I wouldn't say it's causal-just because correlation does not imply causation.
I would go with C on this one; unless it was a perfect 1, I don't think it would be causal.
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