Math Problem Statement
Solution
To match each scatterplot with the correct correlation coefficient, let's analyze the general pattern of each scatterplot and the possible values for the correlation:
The given correlations are:
- a. -0.29
- b. 0.53
- c. -0.91
- d. 0.97
Analysis of Scatterplots:
-
First Scatterplot (Top)
- The data points seem to have a strong positive linear relationship. The points are closely clustered around an upward slope. This indicates a correlation close to +1.
- Match: d. 0.97
-
Second Scatterplot (Second from Top)
- The points are loosely scattered with no strong pattern, but there is a slight downward trend. This suggests a weak negative correlation.
- Match: a. -0.29
-
Third Scatterplot (Second from Bottom)
- The points are strongly clustered around a negative linear trend, indicating a high negative correlation.
- Match: c. -0.91
-
Fourth Scatterplot (Bottom)
- The points display a moderate positive linear relationship, but they are more spread out compared to the first scatterplot. This indicates a moderate positive correlation.
- Match: b. 0.53
Conclusion:
- First scatterplot: d. 0.97
- Second scatterplot: a. -0.29
- Third scatterplot: c. -0.91
- Fourth scatterplot: b. 0.53
Would you like further details or have any questions?
Related Questions:
- What is the meaning of correlation coefficient values between -1 and 1?
- How can you visually determine if a correlation is positive or negative?
- What are some common real-life examples of positive and negative correlations?
- What does a correlation coefficient close to 0 signify?
- How do outliers affect the correlation of a dataset?
Tip:
Correlation does not imply causation. Even if two variables show a strong correlation, it doesn't mean that one causes the other to change.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Correlation
Scatterplot Analysis
Statistical Data Representation
Formulas
Correlation coefficient formula r = (Σ(xy) - (Σx)(Σy)/n) / sqrt([(Σx^2) - (Σx)^2/n][(Σy^2) - (Σy)^2/n])
Theorems
Pearson's Correlation Coefficient
Suitable Grade Level
Grades 10-12