The features that are most important to determining which small areas go into Primary Cluster 1 are: People in income deprivation (INC) and Adults aged 25 to 64 with no qualifications (NOQU).
Y nodweddion pwysicaf wrth benderfynu pa ardaloedd bach sy’n rhan o Brif Glwstwr 1 yw: Pobl mewn amddifadedd incwm (INC) ac Oedolion 25 i 64 oed heb gymwysterau (NOQU).