Which plot indicates a correlation of 0.7? Y & R 8 50 T 10

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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**Question:**
Which plot indicates a correlation of 0.7?

**Answer Options:**

1. ![Image 1 Description: Scatter plot displaying a data set where the dependent variable (Y) appears scattered, showing a weak negative correlation with the independent variable (X).])

2. ![Image 2 Description: Scatter plot displaying a data set where the dependent variable (Y) appears to show a moderately strong positive correlation with the independent variable (X).])

3. ![Image 3 Description: Scatter plot displaying a data set where the dependent variable (Y) appears to show a very strong positive correlation with the independent variable (X).])

To identify which plot indicates a correlation of 0.7, it is necessary to understand the pattern of the data points in each scatter plot:

1. **Plot 1**: The data points exhibit a weak, negative correlation, indicating that as the value of X increases, the value of Y tends to decrease.

2. **Plot 2**: The data points show a moderate to strong positive correlation, indicating that as the value of X increases, the value of Y also increases. The correlation appears to be around 0.7, based on the clustering and linear progression of the points.

3. **Plot 3**: The data points are very tightly clustered along a linear path, showing a very strong positive correlation, likely closer to or exactly equal to 1.0.

Based on these observations, **Plot 2** is the one that indicates a correlation of 0.7.
Transcribed Image Text:**Question:** Which plot indicates a correlation of 0.7? **Answer Options:** 1. ![Image 1 Description: Scatter plot displaying a data set where the dependent variable (Y) appears scattered, showing a weak negative correlation with the independent variable (X).]) 2. ![Image 2 Description: Scatter plot displaying a data set where the dependent variable (Y) appears to show a moderately strong positive correlation with the independent variable (X).]) 3. ![Image 3 Description: Scatter plot displaying a data set where the dependent variable (Y) appears to show a very strong positive correlation with the independent variable (X).]) To identify which plot indicates a correlation of 0.7, it is necessary to understand the pattern of the data points in each scatter plot: 1. **Plot 1**: The data points exhibit a weak, negative correlation, indicating that as the value of X increases, the value of Y tends to decrease. 2. **Plot 2**: The data points show a moderate to strong positive correlation, indicating that as the value of X increases, the value of Y also increases. The correlation appears to be around 0.7, based on the clustering and linear progression of the points. 3. **Plot 3**: The data points are very tightly clustered along a linear path, showing a very strong positive correlation, likely closer to or exactly equal to 1.0. Based on these observations, **Plot 2** is the one that indicates a correlation of 0.7.
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