FALSE. This is a very common misconception that causes students to lose marks in ECZ exams. Absolute error is ALWAYS positive (or zero) because it uses the absolute value notation | |. The formula is: Absolute Error = |Measured Value - Actual Value|. The absolute value bars mean we ignore the sign and take only the magnitude. Examples: If measured = 48 and actual = 50, then absolute error = |48 - 50| = |-2| = 2 (positive). If measured = 52 and actual = 50, then absolute error = |52 - 50| = |2| = 2 (positive). In both cases, the absolute error is positive. The word 'absolute' itself means we're looking at the size of the error, not its direction. If you want to know whether you measured too high or too low, you would use 'error' (without absolute value), which can be positive or negative.

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Naomi Miselo – 31 pts

• Distance of A Straight Line
• Mid-point of A Line
• Equation of a Straight Line
• Parallel and Perpendicular Lines
• COMMUNICATION SYSTEMS