ECZ 2020 · O-Level Paper 1 — Approximations
Chiyalwa estimated the length of a string as 15 cm. If the true length of the string was 14.6 cm, find (a) the absolute error.
- A. 0.6 cm
- B. 29.6 cm
- C. 0.4 cm
- D. 0.04 cm
Verified working — step 1
Absolute error = |estimated value - true value| = |15 - 14.6| = …The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
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