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Noah creates a scatter plot showing the relationship between the number of free throws made in a basketball game and the number of points scored. The correlation coefficient for the line of best fit is 0.76.Do either of the variables cause the other to change? Explain your reasoning.

Noah creates a scatter plot showing the relationship between the number of free throws-example-1
User Niklas Mohrin
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2 Answers

25 votes
25 votes

while the scatter plot and the correlation coefficient provide valuable information about the relationship between free throws and total points scored, they do not establish a causal relationship.

Noah's scatter plot showing the relationship between the number of free throws made in a basketball game and the number of points scored, with a correlation coefficient of 0.76, indicates a strong positive correlation between these two variables. However, it's important to understand that correlation does not imply causation.

Here's why:

1. Correlation Indicates Association, Not Causation: A correlation coefficient of 0.76 suggests that there is a strong association between the number of free throws made and the number of points scored. This means that, typically, as the number of free throws increases, the number of points scored also tends to increase.

2. Causation Requires More Evidence: To establish causation, one would need to demonstrate that changes in one variable (like the number of free throws made) directly cause changes in the other variable (points scored). While it's reasonable to assume that scoring free throws contributes to the total points, the relationship is not exclusively causal. There are many factors in a basketball game that contribute to the total points scored.

3. Other Contributing Factors: Points in a basketball game can be scored in various ways, not just through free throws. Field goals and three-point shots also contribute to the total points. Hence, even if there's a strong correlation with free throws, they are not the sole factor in determining the total points scored.

4. Potential Confounding Variables: There might be other variables at play that affect both free throws and total points, such as the skill level of the players, the strategy employed by the team, or the defense of the opposing team.

User Amol Challawar
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2.8k points
22 votes
22 votes

Yes. Because the variable score is dependent on the free throw

1) Examining the correlation coefficient, since it is 0.76 i.e., closer to +1, then we can state that there is a strong correlation between the number of free throws in a basketball game, and the points scored.

2) One of the variables is dependent on the other. The scored points are heavily dependent on the number of free throws, the more the free-throw the bigger the score.

So, yes the variable score is dependent on the free throw.

User Adam Cataldo
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2.2k points
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