Sig figs and qualitative v quantitative

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In solving equations with parentheses, the significant figures are determined by the operation being performed, particularly focusing on addition and subtraction rules. For the example (0.3991 - 0.02) / 100, the answer would reflect the significant figures of the least precise measurement, which is 0.02, resulting in one significant figure. Quantitative measurements are defined as those involving numbers, such as the percentage of carbon in the body or its atomic mass, while qualitative measurements refer to non-numeric characteristics like smell and color. The distinction between quantitative and qualitative is crucial in scientific analysis. Understanding these concepts is essential for accurate data interpretation.
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Hi, if an equation has parentheses attached, do you solve what is inside and then look at this sig figs to tell you the amount in the answer or not? For example, if I had (0.3991 - .02) / 100. would the answer have 1 significant figure (the .02).


I also had a question with quantitative vs qualitative measurements. Would anything with a number attached be considered quantitative? Would quantitative be saying that for example, carbon makes up X% of the body would as well as maybe carbon's atomic mass is also quantitative? And a qualitative would be smell, color etc.?

Thanks
 
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t5nitro said:
Hi, if an equation has parentheses attached, do you solve what is inside and then look at this sig figs to tell you the amount in the answer or not? For example, if I had (0.3991 - .02) / 100. would the answer have 1 significant figure (the .02).

Parentheses are not important here, what is more important is the fact that sigfig rules for addition and subtraction are a little bit different.

I also had a question with quantitative vs qualitative measurements. Would anything with a number attached be considered quantitative? Would quantitative be saying that for example, carbon makes up X% of the body would as well as maybe carbon's atomic mass is also quantitative? And a qualitative would be smell, color etc.?

Qualitative measurement?
 
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