55.3
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The answer is the absolute difference between the true value and the measured value. It is not clear from the question what the two numbers represent.
55.3
brifly explain about the absolute error?
The absolute value of a number is its distance from zero on the number line, regardless of its sign. In this case, the absolute value of -56 is 56, as it is 56 units away from zero on the number line. The absolute value function essentially removes the negative sign from a number, giving us the positive magnitude of that number.
The mean absolute percent prediction error (MAPE), .The summation ignores observations where yt = 0.
If the true value is t and the calculated or measured value is v then absolute error = |v - t|, the absolute value of (v - t).If v >= t then the absolute value is v - tif v