Welsh vs Costa Rican Per Capita Income

The statistical analysis conducted on geographies consisting of 528,640,565 people shows a poor negative correlation between the proportion of Welsh and per capita income in the United States with a correlation coefficient (R) of -0.143 and weighted average of $43,233. Similarly, the statistical analysis conducted on geographies consisting of 253,595,957 people shows no correlation between the proportion of Costa Ricans and per capita income in the United States with a correlation coefficient (R) of 0.002 and weighted average of $44,090, a difference of 2.0%.

In terms of per capita income, the demographic groups most similar to Welsh are Sierra Leonean ($43,405, a difference of 0.40%), Immigrants from Costa Rica ($43,464, a difference of 0.53%), Finnish ($43,461, a difference of 0.53%), Tlingit-Haida ($43,516, a difference of 0.65%), and Immigrants from South Eastern Asia ($43,539, a difference of 0.71%). Similarly, the demographic groups most similar to Costa Ricans are Swiss ($44,076, a difference of 0.030%), Immigrants from South America ($44,068, a difference of 0.050%), Sri Lankan ($44,014, a difference of 0.17%), Immigrants from Philippines ($44,000, a difference of 0.20%), and Immigrants from Uruguay ($43,997, a difference of 0.21%).