Help predicting if there is or isn't a bias and how it would or would t affect readers claim

Identify at least one potential source of bias in the claim below. Explain why the bias would or would not affect a reader's view of the claim. Based on a research center survey of 35,000 American adults, the percentages of four-year college degree holders among Hindus, atheists, Muslims, Catholics, and all American adults are 77%, 43%, 39%, 27%, and 26%, respectively. bias may be present. The bias affect a reader's view of the claim because