Immigrants from South Africa vs Czechoslovakian Vision Disability

The statistical analysis conducted on geographies consisting of 233,222,881 people shows a weak positive correlation between the proportion of Immigrants from South Africa and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.234 and weighted average of 2.1%. Similarly, the statistical analysis conducted on geographies consisting of 368,413,881 people shows a strong positive correlation between the proportion of Czechoslovakians and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.735 and weighted average of 2.2%, a difference of 7.1%.

Vision Disability Correlation Summary

Measurement	Immigrants from South Africa	Czechoslovakian
Minimum	0.40%	0.51%
Maximum	8.6%	39.0%
Range	8.2%	38.5%
Mean	2.9%	4.3%
Median	2.2%	2.5%
Interquartile 25% (IQ1)	1.8%	2.2%
Interquartile 75% (IQ3)	3.7%	3.6%
Interquartile Range (IQR)	1.9%	1.4%
Standard Deviation (Sample)	2.0%	6.2%
Standard Deviation (Population)	1.9%	6.2%

Similar Demographics by Vision Disability

Demographics Similar to Immigrants from South Africa by Vision Disability

In terms of vision disability, the demographic groups most similar to Immigrants from South Africa are Immigrants from Afghanistan (2.1%, a difference of 0.050%), Estonian (2.1%, a difference of 0.070%), Romanian (2.1%, a difference of 0.11%), Greek (2.1%, a difference of 0.11%), and Australian (2.1%, a difference of 0.17%).

Demographics	Rating \| Rank	Vision Disability
Immigrants \| Somalia	96.2 /100 \| #91	Exceptional 2.1%
Immigrants \| Syria	96.2 /100 \| #92	Exceptional 2.1%
Immigrants \| Europe	96.1 /100 \| #93	Exceptional 2.1%
Immigrants \| Croatia	96.0 /100 \| #94	Exceptional 2.1%
Australians	95.9 /100 \| #95	Exceptional 2.1%
Romanians	95.7 /100 \| #96	Exceptional 2.1%
Immigrants \| Afghanistan	95.6 /100 \| #97	Exceptional 2.1%
Immigrants \| South Africa	95.4 /100 \| #98	Exceptional 2.1%
Estonians	95.3 /100 \| #99	Exceptional 2.1%
Greeks	95.1 /100 \| #100	Exceptional 2.1%
Albanians	94.9 /100 \| #101	Exceptional 2.1%
Sri Lankans	94.8 /100 \| #102	Exceptional 2.1%
Immigrants \| Austria	94.4 /100 \| #103	Exceptional 2.1%
Immigrants \| Italy	94.4 /100 \| #104	Exceptional 2.1%
Carpatho Rusyns	94.3 /100 \| #105	Exceptional 2.1%

Demographics Similar to Czechoslovakians by Vision Disability

In terms of vision disability, the demographic groups most similar to Czechoslovakians are Ghanaian (2.2%, a difference of 0.020%), Immigrants from El Salvador (2.2%, a difference of 0.050%), Immigrants from Grenada (2.2%, a difference of 0.13%), Immigrants from Thailand (2.2%, a difference of 0.14%), and Immigrants (2.2%, a difference of 0.19%).

Demographics	Rating \| Rank	Vision Disability
Canadians	25.8 /100 \| #191	Fair 2.2%
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%