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marshall27 [118]
3 years ago
15

Which expression is equivalent to line l-5l + l3l? -8 -2 2 8

Mathematics
2 answers:
Step2247 [10]3 years ago
6 0
8 so D since -5 becomes a posit and then add 3
Elenna [48]3 years ago
4 0

Answer:

8

Step-by-step explanation:

|-5|+|3|

5+3

8

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Answer:

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Step-by-step explanation:

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2 years ago
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3 0
3 years ago
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A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula
kvasek [131]

Answer:

The sample proportion of printers used in small business is:

\hat{p}=\frac{25}{70}=0.3571

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }

Where:

z_{\frac{0.05}{2}}=1.96 is the critical value at 0.05 significance level

\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }

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Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)



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