Bias is a tendency to favor one person, idea, group, or point of view over the other.
If you’re biased toward something, then you lean favorably toward it; you tend to think positively of it.
Meanwhile, if you’re biased against something, then you lean negatively against it; you tend to think poorly of it.
1. Female teachers of a particular school give more attention to girls. 2. She won the contest because one of the judges is her father.
3. A local official only listens to those who are rich and influential.
4. He is not given a chance to take a scholarship examination because he is too young.
5. The spelling bee master gives a difficult word instead of an easy one to the contestant that he disliked because he wants his bet to win in the easy round.