Earthquakes come in three main forms, depending on the plate movements that occur beneath the earth's surface. They could occur on a Convergent Boundary, on a Divergent Boundary or on a Transform Fault. The severity of the earthquake is classified as either mild, moderate, or major. Of interest is to determine if there is a relationship between the form of the earthquake and the severity of the earthquake. A random sample of 500 earthquakes was analyzed, and the following chart presents the conditional distributions of the severity of the earthquake for each form of earthquake Divergent Boundary Transform Fault Convergent Boundary Mild 67% Mild 65% Mild 95% Moderate 23% Moderate 26% Moderate 3% Major 10% Major 9% Major 2% Since the conditional distributions are not significantly different, there is not an association between the form of the earthquake and the severity of the earthquake. Since the conditional distributions are significantly different, there is not an association between the form of the earthquake and the severity of the earthquake. Since the conditional distributions are not significantly different, there is an association between the form of the earthquake and the severity of the earthquake. Since the conditional distributions are significantly different, there is an association between the form of the earthquake and the severity of the earthquake. O O

Applications and Investigations in Earth Science (9th Edition)
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Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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#### Understanding Earthquake Forms and Severity

**Introduction**
Earthquakes come in three main forms, depending on the plate movements that occur beneath the earth's surface. These movements can occur on a Convergent Boundary, a Divergent Boundary, or a Transform Fault. The severity of earthquakes is classified as either mild, moderate, or major.

**Objective**
The objective of this study is to determine if there is a relationship between the form of the earthquake and the severity of the earthquake. A random sample of 500 earthquakes was analyzed, and the following chart presents the conditional distributions of the severity of the earthquake for each form of earthquake.

**Data Analysis of Earthquake Forms and Severity**

|               | Convergent Boundary | Divergent Boundary | Transform Fault |
|---------------|---------------------|--------------------|-----------------|
| **Mild**      | 67%                 | 65%                | 95%             |
| **Moderate**  | 23%                 | 26%                | 3%              |
| **Major**     | 10%                 | 9%                 | 2%              |

**Interpretation Options**
1. Since the conditional distributions are not significantly different, there is not an association between the form of the earthquake and the severity of the earthquake.
2. Since the conditional distributions are significantly different, there is not an association between the form of the earthquake and the severity of the earthquake.
3. Since the conditional distributions are not significantly different, there is an association between the form of the earthquake and the severity of the earthquake.
4. Since the conditional distributions are significantly different, there is an association between the form of the earthquake and the severity of the earthquake.

**Discussion**
Based on the data presented in the table, students and researchers are encouraged to analyze the distributions of mild, moderate, and major earthquakes in relation to their respective forms (Convergent Boundary, Divergent Boundary, and Transform Fault). This analysis will help in drawing conclusions about whether there is a significant association between the form of the earthquake and its severity.

**Conclusion**
Select the correct interpretation from the options provided to understand the relationship (if any) between the form of the earthquake and its severity.

**Graph/Chart Details**
The chart above lists the percentage of mild, moderate, and major earthquakes occurring at different boundaries. Notice the variations in the percentages across the different types of boundaries, which will help in concluding whether the distribution of severity is similarly affected
Transcribed Image Text:#### Understanding Earthquake Forms and Severity **Introduction** Earthquakes come in three main forms, depending on the plate movements that occur beneath the earth's surface. These movements can occur on a Convergent Boundary, a Divergent Boundary, or a Transform Fault. The severity of earthquakes is classified as either mild, moderate, or major. **Objective** The objective of this study is to determine if there is a relationship between the form of the earthquake and the severity of the earthquake. A random sample of 500 earthquakes was analyzed, and the following chart presents the conditional distributions of the severity of the earthquake for each form of earthquake. **Data Analysis of Earthquake Forms and Severity** | | Convergent Boundary | Divergent Boundary | Transform Fault | |---------------|---------------------|--------------------|-----------------| | **Mild** | 67% | 65% | 95% | | **Moderate** | 23% | 26% | 3% | | **Major** | 10% | 9% | 2% | **Interpretation Options** 1. Since the conditional distributions are not significantly different, there is not an association between the form of the earthquake and the severity of the earthquake. 2. Since the conditional distributions are significantly different, there is not an association between the form of the earthquake and the severity of the earthquake. 3. Since the conditional distributions are not significantly different, there is an association between the form of the earthquake and the severity of the earthquake. 4. Since the conditional distributions are significantly different, there is an association between the form of the earthquake and the severity of the earthquake. **Discussion** Based on the data presented in the table, students and researchers are encouraged to analyze the distributions of mild, moderate, and major earthquakes in relation to their respective forms (Convergent Boundary, Divergent Boundary, and Transform Fault). This analysis will help in drawing conclusions about whether there is a significant association between the form of the earthquake and its severity. **Conclusion** Select the correct interpretation from the options provided to understand the relationship (if any) between the form of the earthquake and its severity. **Graph/Chart Details** The chart above lists the percentage of mild, moderate, and major earthquakes occurring at different boundaries. Notice the variations in the percentages across the different types of boundaries, which will help in concluding whether the distribution of severity is similarly affected
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