Immigrants from Ireland vs Scotch-Irish Average Family Size

The statistical analysis conducted on geographies consisting of 240,751,818 people shows a moderate negative correlation between the proportion of Immigrants from Ireland and average family size in the United States with a correlation coefficient (R) of -0.436 and weighted average of 3.13. Similarly, the statistical analysis conducted on geographies consisting of 548,372,805 people shows a slight negative correlation between the proportion of Scotch-Irish and average family size in the United States with a correlation coefficient (R) of -0.056 and weighted average of 3.11, a difference of 0.81%.

Average Family Size Correlation Summary

Measurement	Immigrants from Ireland	Scotch-Irish
Minimum	2.06	1.34
Maximum	3.85	6.29
Range	1.79	4.95
Mean	2.99	3.03
Median	3.05	3.00
Interquartile 25% (IQ1)	2.86	2.73
Interquartile 75% (IQ3)	3.19	3.38
Interquartile Range (IQR)	0.34	0.65
Standard Deviation (Sample)	0.33	0.77
Standard Deviation (Population)	0.33	0.77

Similar Demographics by Average Family Size

Demographics Similar to Immigrants from Ireland by Average Family Size

In terms of average family size, the demographic groups most similar to Immigrants from Ireland are Immigrants from Serbia (3.13, a difference of 0.010%), Slavic (3.13, a difference of 0.060%), Northern European (3.13, a difference of 0.060%), Australian (3.13, a difference of 0.070%), and Immigrants from Switzerland (3.13, a difference of 0.090%).

Demographics	Rating \| Rank	Average Family Size
Canadians	0.2 /100 \| #299	Tragic 3.14
Immigrants \| Sweden	0.2 /100 \| #300	Tragic 3.14
Macedonians	0.2 /100 \| #301	Tragic 3.13
Immigrants \| Latvia	0.2 /100 \| #302	Tragic 3.13
British	0.2 /100 \| #303	Tragic 3.13
Immigrants \| Switzerland	0.2 /100 \| #304	Tragic 3.13
Australians	0.1 /100 \| #305	Tragic 3.13
Immigrants \| Ireland	0.1 /100 \| #306	Tragic 3.13
Immigrants \| Serbia	0.1 /100 \| #307	Tragic 3.13
Slavs	0.1 /100 \| #308	Tragic 3.13
Northern Europeans	0.1 /100 \| #309	Tragic 3.13
Czechoslovakians	0.1 /100 \| #310	Tragic 3.13
Immigrants \| Northern Europe	0.1 /100 \| #311	Tragic 3.13
Immigrants \| Australia	0.1 /100 \| #312	Tragic 3.13
Bulgarians	0.1 /100 \| #313	Tragic 3.13

Demographics Similar to Scotch-Irish by Average Family Size

In terms of average family size, the demographic groups most similar to Scotch-Irish are Latvian (3.11, a difference of 0.0%), Scottish (3.11, a difference of 0.0%), Estonian (3.10, a difference of 0.050%), Lithuanian (3.10, a difference of 0.050%), and Belgian (3.11, a difference of 0.060%).

Demographics	Rating \| Rank	Average Family Size
Celtics	0.0 /100 \| #324	Tragic 3.11
English	0.0 /100 \| #325	Tragic 3.11
Ottawa	0.0 /100 \| #326	Tragic 3.11
Dutch	0.0 /100 \| #327	Tragic 3.11
Czechs	0.0 /100 \| #328	Tragic 3.11
Belgians	0.0 /100 \| #329	Tragic 3.11
Latvians	0.0 /100 \| #330	Tragic 3.11
Scotch-Irish	0.0 /100 \| #331	Tragic 3.11
Scottish	0.0 /100 \| #332	Tragic 3.11
Estonians	0.0 /100 \| #333	Tragic 3.10
Lithuanians	0.0 /100 \| #334	Tragic 3.10
Luxembourgers	0.0 /100 \| #335	Tragic 3.10
Irish	0.0 /100 \| #336	Tragic 3.10
Swedes	0.0 /100 \| #337	Tragic 3.10
French	0.0 /100 \| #338	Tragic 3.10