Final answer:
During World War II, approximately 6.5 million American women entered the labor force and accounted for 50 percent of it by the end of the war. These women took on various roles in industries where few women had previously been employed.
Step-by-step explanation:
During World War II, approximately 6.5 million American women entered the labor force and accounted for 50 percent of it by the end of the war. These women took on various roles, including working in industries where few women had previously been employed, such as banking and munitions. The famous 'Rosie the Riveter' poster symbolized the commitment and competence of women who stepped into industrial jobs to replace men who were serving in the armed forces. However, it's important to note that despite these advancements, many women were still confined to low-paying occupations, and the majority did not enter the paid workforce.