Immigrants from Portugal vs Iranian Married-couple Households

The statistical analysis conducted on geographies consisting of 174,766,894 people shows a mild negative correlation between the proportion of Immigrants from Portugal and percentage of married-couple family households in the United States with a correlation coefficient (R) of -0.375 and weighted average of 45.2%. Similarly, the statistical analysis conducted on geographies consisting of 316,648,263 people shows a poor positive correlation between the proportion of Iranians and percentage of married-couple family households in the United States with a correlation coefficient (R) of 0.174 and weighted average of 49.0%, a difference of 8.3%.

Married-couple Households Correlation Summary

Measurement	Immigrants from Portugal	Iranian
Minimum	13.2%	24.8%
Maximum	73.9%	94.9%
Range	60.7%	70.0%
Mean	44.7%	53.3%
Median	46.8%	53.4%
Interquartile 25% (IQ1)	38.8%	44.5%
Interquartile 75% (IQ3)	51.9%	60.3%
Interquartile Range (IQR)	13.1%	15.8%
Standard Deviation (Sample)	11.7%	13.5%
Standard Deviation (Population)	11.6%	13.4%

Similar Demographics by Married-couple Households

Demographics Similar to Immigrants from Portugal by Married-couple Households

In terms of married-couple households, the demographic groups most similar to Immigrants from Portugal are Immigrants from Nepal (45.2%, a difference of 0.0%), Japanese (45.2%, a difference of 0.020%), Panamanian (45.2%, a difference of 0.020%), Yakama (45.2%, a difference of 0.050%), and Immigrants from the Azores (45.2%, a difference of 0.050%).

Demographics	Rating \| Rank	Married-couple Households
Immigrants \| Uzbekistan	8.4 /100 \| #209	Tragic 45.4%
Cubans	7.7 /100 \| #210	Tragic 45.4%
Immigrants \| Spain	7.3 /100 \| #211	Tragic 45.3%
Creek	6.4 /100 \| #212	Tragic 45.3%
Yakama	5.8 /100 \| #213	Tragic 45.2%
Japanese	5.7 /100 \| #214	Tragic 45.2%
Immigrants \| Nepal	5.6 /100 \| #215	Tragic 45.2%
Immigrants \| Portugal	5.6 /100 \| #216	Tragic 45.2%
Panamanians	5.5 /100 \| #217	Tragic 45.2%
Immigrants \| Azores	5.3 /100 \| #218	Tragic 45.2%
Nicaraguans	5.3 /100 \| #219	Tragic 45.2%
Immigrants \| Thailand	5.1 /100 \| #220	Tragic 45.2%
Tlingit-Haida	4.9 /100 \| #221	Tragic 45.1%
Immigrants \| Laos	4.6 /100 \| #222	Tragic 45.1%
Immigrants \| Cambodia	2.7 /100 \| #223	Tragic 44.9%

Demographics Similar to Iranians by Married-couple Households

In terms of married-couple households, the demographic groups most similar to Iranians are Sri Lankan (49.0%, a difference of 0.0%), Scottish (49.0%, a difference of 0.090%), Greek (48.9%, a difference of 0.10%), Italian (49.0%, a difference of 0.11%), and Lithuanian (48.9%, a difference of 0.18%).

Demographics	Rating \| Rank	Married-couple Households
Maltese	99.8 /100 \| #29	Exceptional 49.2%
Bolivians	99.8 /100 \| #30	Exceptional 49.2%
Native Hawaiians	99.8 /100 \| #31	Exceptional 49.1%
Hungarians	99.8 /100 \| #32	Exceptional 49.1%
Immigrants \| Asia	99.7 /100 \| #33	Exceptional 49.1%
Italians	99.7 /100 \| #34	Exceptional 49.0%
Scottish	99.7 /100 \| #35	Exceptional 49.0%
Iranians	99.7 /100 \| #36	Exceptional 49.0%
Sri Lankans	99.7 /100 \| #37	Exceptional 49.0%
Greeks	99.7 /100 \| #38	Exceptional 48.9%
Lithuanians	99.6 /100 \| #39	Exceptional 48.9%
Immigrants \| Bolivia	99.6 /100 \| #40	Exceptional 48.9%
Immigrants \| Lebanon	99.6 /100 \| #41	Exceptional 48.9%
Immigrants \| Vietnam	99.6 /100 \| #42	Exceptional 48.8%
Immigrants \| Iran	99.6 /100 \| #43	Exceptional 48.8%