Question

select the word that means a fixed idea about a group that may be unfair or untrue. american runner anne garrett didnt take up running until age seventy - two. at eighty, she set a national record for the half - marathon in her age group. she defies the stereotype that older people dont exercise, although she urges kids to run, too.

Explanation:

The term for a fixed idea about a group that may be unfair or untrue is "stereotype". In the example, the idea that older people don't exercise is a stereotype which Anne Garrett defies.

Answer:

stereotype