Final answer:
The anchoring bias is the bias that involves becoming fixated on a single trait of a problem.
Step-by-step explanation:
The bias that involves becoming fixated on a single trait of a problem is the anchoring bias. This bias refers to our tendency to rely on initial values, prices, or quantities when estimating the actual value, price, or quantity of something. For example, if you are given an arbitrary number as a starting point, your subsequent estimates may be influenced by that initial value, even if it is not relevant or accurate.