Question

question 18
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if you place an object on a balance and it measures 3.72 g, how many of these digits are uncertain?
3
0
1
2
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Explanation:

In measured values, all digits are certain except the final one, which is an estimated (uncertain) digit. For 3.72 g, the digits 3 and 7 are certain, while the final digit 2 is uncertain.

Answer:

1