Portuguese vs Immigrants from Zaire Vision Disability
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Portuguese
 Immigrants from Zaire
 Vision Disability
Vision Disability Comparison
Portuguese
Immigrants from Zaire
2.3%
VISION DISABILITY
4.9/ 100
METRIC RATING
218th/ 347
METRIC RANK
2.2%
VISION DISABILITY
18.0/ 100
METRIC RATING
202nd/ 347
METRIC RANK
Portuguese vs Immigrants from Zaire Vision Disability Correlation Chart
The statistical analysis conducted on geographies consisting of 449,734,569 people shows a slight negative correlation between the proportion of Portuguese and percentage of population with vision disability in the United States with a correlation coefficient (R) of -0.078 and weighted average of 2.3%. Similarly, the statistical analysis conducted on geographies consisting of 107,249,797 people shows a very strong positive correlation between the proportion of Immigrants from Zaire and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.836 and weighted average of 2.2%, a difference of 2.2%.
 
Vision Disability Correlation Summary
| Measurement | Portuguese | Immigrants from Zaire | 
| Minimum | 0.39% | 1.1% | 
| Maximum | 7.6% | 14.0% | 
| Range | 7.2% | 12.9% | 
| Mean | 2.5% | 2.6% | 
| Median | 2.3% | 2.1% | 
| Interquartile 25% (IQ1) | 2.0% | 1.9% | 
| Interquartile 75% (IQ3) | 2.7% | 2.5% | 
| Interquartile Range (IQR) | 0.65% | 0.61% | 
| Standard Deviation (Sample) | 1.2% | 2.3% | 
| Standard Deviation (Population) | 1.2% | 2.3% | 
Demographics Similar to Portuguese and Immigrants from Zaire by Vision Disability
In terms of vision disability, the demographic groups most similar to Portuguese are Barbadian (2.3%, a difference of 0.070%), Ecuadorian (2.3%, a difference of 0.11%), Immigrants from Trinidad and Tobago (2.3%, a difference of 0.34%), Guamanian/Chamorro (2.3%, a difference of 0.35%), and Nigerian (2.3%, a difference of 0.63%). Similarly, the demographic groups most similar to Immigrants from Zaire are Slovak (2.2%, a difference of 0.090%), Dutch (2.2%, a difference of 0.10%), Immigrants from Thailand (2.2%, a difference of 0.22%), Immigrants from Guyana (2.2%, a difference of 0.23%), and Samoan (2.2%, a difference of 0.25%).
| Demographics | Rating | Rank | Vision Disability | 
| Immigrants | Thailand | 20.1 /100 | #200  | Fair 2.2%  | 
| Slovaks | 18.8 /100 | #201  | Poor 2.2%  | 
| Immigrants | Zaire | 18.0 /100 | #202  | Poor 2.2%  | 
| Dutch | 17.1 /100 | #203  | Poor 2.2%  | 
| Immigrants | Guyana | 15.9 /100 | #204  | Poor 2.2%  | 
| Samoans | 15.7 /100 | #205  | Poor 2.2%  | 
| Pennsylvania Germans | 14.5 /100 | #206  | Poor 2.2%  | 
| Immigrants | Nigeria | 13.5 /100 | #207  | Poor 2.2%  | 
| Germans | 13.4 /100 | #208  | Poor 2.2%  | 
| Immigrants | Brazil | 13.1 /100 | #209  | Poor 2.2%  | 
| Immigrants | Uruguay | 11.5 /100 | #210  | Poor 2.2%  | 
| Indonesians | 9.5 /100 | #211  | Tragic 2.2%  | 
| Bermudans | 9.0 /100 | #212  | Tragic 2.2%  | 
| Immigrants | Ghana | 8.9 /100 | #213  | Tragic 2.2%  | 
| Trinidadians and Tobagonians | 8.2 /100 | #214  | Tragic 2.2%  | 
| Nigerians | 7.2 /100 | #215  | Tragic 2.3%  | 
| Immigrants | Trinidad and Tobago | 6.1 /100 | #216  | Tragic 2.3%  | 
| Barbadians | 5.1 /100 | #217  | Tragic 2.3%  | 
| Portuguese | 4.9 /100 | #218  | Tragic 2.3%  | 
| Ecuadorians | 4.6 /100 | #219  | Tragic 2.3%  | 
| Guamanians/Chamorros | 3.9 /100 | #220  | Tragic 2.3%  |