Identify the strategy used in each of the following examples. Choose from: trial and error, algorithm, heuristic, insight, representativeness heuristic, availability heuristic, and single-feature model. You are asked to complete the following sequence: \(\mathrm{O}, \mathrm{T}, \mathrm{T}, \mathrm{F}, \mathrm{F}\) __________ __________ ___________ _________ ____________ You suddenly realize that the answer is obvious: S, S, E, N, T.

Observe the current sequence: \(\mathrm{O}, \mathrm{T}, \mathrm{T}, \mathrm{F}, \mathrm{F}\) Next, let's look at the completed sequence: \(\mathrm{O}, \mathrm{T}, \mathrm{T}, \mathrm{F}, \mathrm{F}, \mathrm{S}, \mathrm{S}, \mathrm{E}, \mathrm{N}, \mathrm{T}\). We can notice that the sequence represents the first letters of the English numbers in order: One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten.

First, let's review the definitions of the different strategies provided to help us identify which one was used to complete the sequence. 1. Trial and error: solving a problem through experimentation 2. Algorithm: a precise set of rules to solve a problem 3. Heuristic: a general problem-solving approach, usually a shortcut or rule of thumb that is not always perfect but can provide adequate results 4. Insight: the sudden realization or understanding of the solution to a problem 5. Representativeness heuristic: estimating the likelihood of an event based on its similarity to an existing mental prototype 6. Availability heuristic: estimating the likelihood of an event based on its ease of recall or how easily examples come to mind 7. Single-feature model: making a decision based on one key feature or trait With the sequence now clear, it can be deduced that the strategy used to complete the sequence is:

Insight: the sudden realization or understanding of the solution to a problem