Bulgarian vs Welsh 9th Grade
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Bulgarian
 Welsh
 9th Grade
9th Grade Comparison
Bulgarians
Welsh
96.2%
9TH GRADE
99.9/ 100
METRIC RATING
35th/ 347
METRIC RANK
96.4%
9TH GRADE
100.0/ 100
METRIC RATING
19th/ 347
METRIC RANK
Bulgarian vs Welsh 9th Grade Correlation Chart
The statistical analysis conducted on geographies consisting of 205,632,748 people shows a weak positive correlation between the proportion of Bulgarians and percentage of population with at least 9th grade education in the United States with a correlation coefficient (R) of 0.234 and weighted average of 96.2%. Similarly, the statistical analysis conducted on geographies consisting of 528,596,253 people shows a mild positive correlation between the proportion of Welsh and percentage of population with at least 9th grade education in the United States with a correlation coefficient (R) of 0.399 and weighted average of 96.4%, a difference of 0.23%.
 
9th Grade Correlation Summary
| Measurement | Bulgarian | Welsh | 
| Minimum | 89.7% | 90.8% | 
| Maximum | 100.0% | 100.0% | 
| Range | 10.3% | 9.2% | 
| Mean | 97.4% | 98.2% | 
| Median | 97.7% | 98.5% | 
| Interquartile 25% (IQ1) | 96.5% | 97.4% | 
| Interquartile 75% (IQ3) | 98.7% | 100.0% | 
| Interquartile Range (IQR) | 2.2% | 2.6% | 
| Standard Deviation (Sample) | 2.0% | 2.1% | 
| Standard Deviation (Population) | 1.9% | 2.1% | 
Demographics Similar to Bulgarians and Welsh by 9th Grade
In terms of 9th grade, the demographic groups most similar to Bulgarians are Northern European (96.2%, a difference of 0.010%), Hungarian (96.2%, a difference of 0.040%), Estonian (96.1%, a difference of 0.050%), Luxembourger (96.3%, a difference of 0.070%), and Maltese (96.3%, a difference of 0.080%). Similarly, the demographic groups most similar to Welsh are Italian (96.4%, a difference of 0.0%), Alaskan Athabascan (96.4%, a difference of 0.020%), European (96.4%, a difference of 0.030%), Scandinavian (96.5%, a difference of 0.040%), and Czech (96.4%, a difference of 0.040%).
| Demographics | Rating | Rank | 9th Grade | 
| Dutch | 100.0 /100 | #17  | Exceptional 96.5%  | 
| Scandinavians | 100.0 /100 | #18  | Exceptional 96.5%  | 
| Welsh | 100.0 /100 | #19  | Exceptional 96.4%  | 
| Italians | 100.0 /100 | #20  | Exceptional 96.4%  | 
| Alaskan Athabascans | 100.0 /100 | #21  | Exceptional 96.4%  | 
| Europeans | 100.0 /100 | #22  | Exceptional 96.4%  | 
| Czechs | 100.0 /100 | #23  | Exceptional 96.4%  | 
| Latvians | 100.0 /100 | #24  | Exceptional 96.4%  | 
| French | 100.0 /100 | #25  | Exceptional 96.3%  | 
| French Canadians | 100.0 /100 | #26  | Exceptional 96.3%  | 
| Scotch-Irish | 100.0 /100 | #27  | Exceptional 96.3%  | 
| Eastern Europeans | 100.0 /100 | #28  | Exceptional 96.3%  | 
| Chinese | 100.0 /100 | #29  | Exceptional 96.3%  | 
| Maltese | 100.0 /100 | #30  | Exceptional 96.3%  | 
| British | 100.0 /100 | #31  | Exceptional 96.3%  | 
| Belgians | 100.0 /100 | #32  | Exceptional 96.3%  | 
| Luxembourgers | 100.0 /100 | #33  | Exceptional 96.3%  | 
| Hungarians | 100.0 /100 | #34  | Exceptional 96.2%  | 
| Bulgarians | 99.9 /100 | #35  | Exceptional 96.2%  | 
| Northern Europeans | 99.9 /100 | #36  | Exceptional 96.2%  | 
| Estonians | 99.9 /100 | #37  | Exceptional 96.1%  |