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Sonbull [250]
4 years ago
11

What is the value of y?

Mathematics
1 answer:
tangare [24]4 years ago
4 0
Y=112 because of vertical angles or if you subtract 68 from 180 to get it.
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FIRST ONE TO GES WHAT COLOR MY PHONE IS! GETS BRAINLIEST
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Write 300+6+0.3+0.02+0.008 in standard form
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Answer: 306.328

Step-by-step:

To get that answer do this:

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At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.05 for the estimation of a population pro
VashaNatasha [74]

Answer:

The sample size 'n' = 384

Step-by-step explanation:

<u>Step(i)</u>:-

Given data the margin of error = 0.05

The margin of error of the estimation of a population proportion is determined by

M.E = \frac{Z_{\frac{\alpha }{2} }\sqrt{p(1-p}  }{\sqrt{n} }

<u><em>Step(ii)</em></u>:-

In data not given sample proportion 'p' but

we know that \sqrt{p(1-p} \leq \frac{1}{2}

0.05 = \frac{1.96 X \frac{1}{2} }{\sqrt{n} }

cross multiplication, we get

0.05 ×√n = 0.98

\sqrt{n} = \frac{0.98}{0.05} = 19.6

<em>squaring on both sides, we get</em>

<em>n = 384.16≅ 384</em>

<u><em>Final answer</em></u><em>:-</em>

<em>The sample size 'n' = 384</em>

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