Final answer:
The common background variable given for Hispanic American women is their ethnicity or heritage as Hispanic/Latino. This term is used to refer to people from Spanish-speaking countries, encompassing individuals from various countries such as Mexico, Puerto Rico, Cuba, and the Dominican Republic.
Step-by-step explanation:
The common background variable given for Hispanic American women, even though they have migrated from many different countries, is their ethnicity or heritage as Hispanic/Latino. This term is used to refer to people from Spanish-speaking countries, and it is used as a broad category to encompass individuals from various countries such as Mexico, Puerto Rico, Cuba, and the Dominican Republic.
Despite the wide differences among the origins that make up the Hispanic American population, the term 'Hispanic' is often used as a unifying label, acknowledging the shared experiences and cultural heritage of individuals from these different countries. However, there have been some disagreements over whether Hispanic or Latino is the correct term, and some individuals may prefer to identify themselves based on their specific origin, such as Mexican American or Dominican American.