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Measurement, accuracy and precision
Lower Sec Science · Secondary 1 · Medium · Measurement, accuracy and precision
A student measures the length of a metal rod with a ruler marked in millimetres. She repeats the measurement three times and gets 12.4 cm, 12.5 cm and 12.4 cm. What should she record as the final length of the rod?
- 12.4 cm
- 12.3 cm
- 12.5 cm
- 12.45 cm
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