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ycow [4]
3 years ago
12

What is the answer to |-12| and |3|

Mathematics
2 answers:
Snezhnost [94]3 years ago
7 0

Answer:

12 and 3

Step-by-step explanation:

If I understand what you are asking, then the | | symbols are absolute value symbols. That means that if a number is negative within those lines, then that number is no longer negative. However, if a positive number is within those lines, then the number stays the same.

If you have a problem like |-12| - |3|, then simply do 12 - 3, or 9. However, you would write it as |9|. Hope this helps!

IgorC [24]3 years ago
3 0
12 and -3 ...........
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Answer:

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Step-by-step explanation:

The (1 - <em>α</em>) % confidence interval for population mean (<em>μ</em>) is:

CI=\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}

Here the population standard deviation (σ) is not provided. So the confidence interval would be computed using the <em>t</em>-distribution.

The (1 - <em>α</em>) % confidence interval for population mean (<em>μ</em>) using the <em>t</em>-distribution is:

CI=\bar x\pm t_{\alpha /2,(n-1)}\frac{s}{\sqrt{n}}

Given:

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Compute the 99% confidence interval as follows:

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