#### [[Mean Absolute Error]] --- Mean Absolute Error `error = actual−predicted` So, if a house cost $150,000 and you predicted it would cost $100,000 the error is $50,000. ```python X = 150_000 - 100_000 # 50_000 Y = 100_000 - 150_000 # -50_000 ``` mean of absolute of the errors #✅️/🟩️ $\frac{|Y|+|X|}{2}$ --- Tags: Reference: