Final answer:
Approximately 6% of American Christians are members of the Historically Black Protestant Tradition.
Step-by-step explanation:
Historically Black Protestant refers to a religious tradition that emerged from the experiences of African Americans within Protestant Christianity. It includes denominations such as the African Methodist Episcopal (AME) Church, the National Baptist Convention, and the Church of God in Christ.
According to a recent survey by the Pew Research Center, approximately 6% of American Christians identify as members of the Historically Black Protestant tradition. This translates to about 6 million people.
It is worth noting that the percentage may vary over time as individuals' religious affiliations and practices change.
Learn more about Historically Black Protestant Tradition