# Technical Data Extraction: Coverage Ratio Analysis
## 1. Image Overview
This image is a line graph comparing the performance of two experimental conditions (labeled "1" and "2") across varying sample sizes ($n_s$). The chart includes error bars representing variability or confidence intervals for each data point.
## 2. Component Isolation
### Header/Metadata
* **Language:** English
* **Primary Metric (Y-axis):** Coverage Ratio
* **Independent Variable (X-axis):** $n_s$ (Sample Size)
### Main Chart Area
* **X-axis Scale:** Categorical/Discrete numerical values: 5000, 7500, 10000, 20000, 30000, 60000, 80000.
* **Y-axis Scale:** Linear scale ranging from 0.84 to 1.00 with increments of 0.02.
* **Data Series 1 (Blue):** Represents "Experiment 1".
* **Data Series 2 (Orange):** Represents "Experiment 2".
### Legend (Spatial Grounding: Bottom Right [~720, 880])
* **Title:** Experiment
* **Blue Circle:** 1
* **Orange Circle:** 2
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## 3. Data Extraction and Trend Analysis
### Series 1: Experiment 1 (Blue Line)
* **Trend Verification:** This line is nearly perfectly horizontal, maintaining a value extremely close to 1.00 across all values of $n_s$. It shows negligible variance and no significant response to the increase in sample size.
* **Data Points (Approximate):**
* $n_s$ 5000: ~1.00
* $n_s$ 7500: ~1.00
* $n_s$ 10000: ~1.00
* $n_s$ 20000: ~0.998 (slightest dip)
* $n_s$ 30000: ~1.00
* $n_s$ 60000: ~1.00
* $n_s$ 80000: ~1.00
### Series 2: Experiment 2 (Orange Line)
* **Trend Verification:** This line exhibits significant volatility and a general downward trend as $n_s$ increases. It starts relatively high (~0.93), fluctuates between $n_s$ 7500 and 60000, and then drops sharply at the final data point ($n_s$ 80000). Error bars are prominent, indicating lower precision compared to Experiment 1.
* **Data Points and Error Estimates:**
* **$n_s$ 5000:** ~0.932 (Error range: ~0.920 to 0.945)
* **$n_s$ 7500:** ~0.937 (Error range: ~0.925 to 0.948)
* **$n_s$ 10000:** ~0.920 (Error range: ~0.908 to 0.933)
* **$n_s$ 20000:** ~0.936 (Error range: ~0.922 to 0.948)
* **$n_s$ 30000:** ~0.905 (Error range: ~0.892 to 0.918)
* **$n_s$ 60000:** ~0.922 (Error range: ~0.910 to 0.935)
* **$n_s$ 80000:** ~0.854 (Error range: ~0.840 to 0.868)
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## 4. Summary Table of Extracted Data
| $n_s$ (Sample Size) | Experiment 1 (Blue) | Experiment 2 (Orange) |
| :--- | :--- | :--- |
| 5000 | ~1.00 | ~0.932 |
| 7500 | ~1.00 | ~0.937 |
| 10000 | ~1.00 | ~0.920 |
| 20000 | ~0.998 | ~0.936 |
| 30000 | ~1.00 | ~0.905 |
| 60000 | ~1.00 | ~0.922 |
| 80000 | ~1.00 | ~0.854 |
## 5. Technical Observations
* **Performance Gap:** Experiment 1 consistently outperforms Experiment 2 in terms of Coverage Ratio across the entire tested range.
* **Stability:** Experiment 1 is highly stable, whereas Experiment 2 shows sensitivity to the sample size, particularly at the highest value (80000), where performance degrades significantly.
* **Uncertainty:** The presence of error bars on Experiment 2 suggests a stochastic element or higher variance in results that is not present (or is negligible) in Experiment 1.
