The length of a table is measured as 99 ±1 cm, 90 t± 0.06 cm and 96 ±0.1 cm by students A, B and C. a. Which measurement has the highest precision? Why? b. If the actual length of the table is 95 cm, which measurement is the most accurate? Why? C. Measure the mass shown in the instrument and give the answer with its uncertainty (due to the instrument). 900 100 grams 800 200 T00 300 600 400 500

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