Subsaharan African vs Immigrants from El Salvador Vision Disability

The statistical analysis conducted on geographies consisting of 507,474,731 people shows a weak positive correlation between the proportion of Sub-Saharan Africans and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.288 and weighted average of 2.3%. Similarly, the statistical analysis conducted on geographies consisting of 357,605,888 people shows a substantial negative correlation between the proportion of Immigrants from El Salvador and percentage of population with vision disability in the United States with a correlation coefficient (R) of -0.502 and weighted average of 2.2%, a difference of 6.1%.

Vision Disability Correlation Summary

Measurement	Subsaharan African	Immigrants from El Salvador
Minimum	0.34%	0.21%
Maximum	9.3%	4.1%
Range	9.0%	3.9%
Mean	2.6%	1.9%
Median	2.3%	2.1%
Interquartile 25% (IQ1)	2.0%	1.5%
Interquartile 75% (IQ3)	2.7%	2.3%
Interquartile Range (IQR)	0.74%	0.86%
Standard Deviation (Sample)	1.6%	0.70%
Standard Deviation (Population)	1.6%	0.69%

Similar Demographics by Vision Disability

Demographics Similar to Sub-Saharan Africans by Vision Disability

In terms of vision disability, the demographic groups most similar to Sub-Saharan Africans are Liberian (2.3%, a difference of 0.010%), Guatemalan (2.3%, a difference of 0.020%), French (2.3%, a difference of 0.060%), Bangladeshi (2.3%, a difference of 0.10%), and Alsatian (2.3%, a difference of 0.21%).

Demographics	Rating \| Rank	Vision Disability
Malaysians	0.9 /100 \| #241	Tragic 2.3%
Immigrants \| Panama	0.8 /100 \| #242	Tragic 2.3%
Immigrants \| Nicaragua	0.6 /100 \| #243	Tragic 2.3%
Immigrants \| West Indies	0.6 /100 \| #244	Tragic 2.3%
Alsatians	0.6 /100 \| #245	Tragic 2.3%
French	0.5 /100 \| #246	Tragic 2.3%
Guatemalans	0.5 /100 \| #247	Tragic 2.3%
Sub-Saharan Africans	0.5 /100 \| #248	Tragic 2.3%
Liberians	0.5 /100 \| #249	Tragic 2.3%
Bangladeshis	0.5 /100 \| #250	Tragic 2.3%
Immigrants \| Laos	0.4 /100 \| #251	Tragic 2.4%
Immigrants \| Micronesia	0.3 /100 \| #252	Tragic 2.4%
Japanese	0.3 /100 \| #253	Tragic 2.4%
Haitians	0.3 /100 \| #254	Tragic 2.4%
Immigrants \| Guatemala	0.3 /100 \| #255	Tragic 2.4%

Demographics Similar to Immigrants from El Salvador by Vision Disability

In terms of vision disability, the demographic groups most similar to Immigrants from El Salvador are Czechoslovakian (2.2%, a difference of 0.050%), Ghanaian (2.2%, a difference of 0.070%), Immigrants from Thailand (2.2%, a difference of 0.090%), Immigrants from Grenada (2.2%, a difference of 0.18%), and Slovak (2.2%, a difference of 0.21%).

Demographics	Rating \| Rank	Vision Disability
Europeans	25.7 /100 \| #192	Fair 2.2%
British	25.1 /100 \| #193	Fair 2.2%
Immigrants \| Barbados	24.0 /100 \| #194	Fair 2.2%
Immigrants \| Immigrants	23.7 /100 \| #195	Fair 2.2%
Immigrants \| Grenada	23.1 /100 \| #196	Fair 2.2%
Ghanaians	21.8 /100 \| #197	Fair 2.2%
Czechoslovakians	21.6 /100 \| #198	Fair 2.2%
Immigrants \| El Salvador	21.0 /100 \| #199	Fair 2.2%
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%