Answer:A heuristic
Explanation:A heuristic technique, often called simply a heuristic, is any approach to problem solving, learning, or discovery that employs a practical method not guaranteed to be optimal or perfect, but sufficient for the immediate goals.
Heuristics can be mental shortcuts that ease the cognitive load of making a decision. Examples that employ heuristics include using trial and error, a rule of thumb, an educated guess, an intuitive judgment, a guesstimate, profiling, or common sense.
Answer: In formal language, grammar is more complex and sentences are generally longer. For example: We regret to inform you that the delivery will be delayed due to adverse weather conditions [formal] Sorry, but the delivery will be late because of the weather [informal]
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