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Mathematics 12 Online
prendbry000:

Which of the following represents the same level of precision? Check all that apply A. 54.6 B. 1,260.13 C. 24.589 D. 2.713

Lulabalula:

what answers can you mark off and what number is precise?

Lulabalula:

Well, you need to know what "precision" means. 1 is not very precise. 1.0000000000000005 is extremely precise. What is the difference between the two? Hint: look up "significant digits". What do you get from that?

Lulabalula:

what was the answer?

Lulabalula:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Lulabalula what was the answer? \(\color{#0cbb34}{\text{End of Quote}}\) @prendbry000

Lulabalula:

B and C right?

Lulabalula:

Helloooo

prendbry000:

hi

Lulabalula:

ok

prendbry000:

I learned this. But I just don't get how to do any of it.

Lulabalula:

ok

Lulabalula:

It should be B anc C

prendbry000:

Can you explain why? So that I can understand it better.

Lulabalula:

Precision is how many significant figures have been measured. This is the number of digits in between the first and last non-zero digit. In this case we have: 1265.12 = 6 sig figs 0.71 = 2 sig figs 24.5 = 3 sig figs 54 = 2 sig figs So 0.71 and 54 represent the same level of precision.

prendbry000:

Ok, thx. That helped a lot

Lulabalula:

np

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