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OverLord2011 [107]
3 years ago
8

Can someone help me with this pls

Mathematics
2 answers:
MAXImum [283]3 years ago
8 0
I believe it's -12>x. Hope it helps!
Shtirlitz [24]3 years ago
6 0
The answer is -12
try using demos it helps a lot with number lines and graphs (:
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Answer:

The answer is "0.45 \pm 0.18204"

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For the +4 sample proportion= \frac{(7+2)}{(16+4)} =  \frac{9}{20} = 0.45

Sample percentage measurements estimated stdev

= \sqrt{\frac{[(0.45)(1-0.45)]}{[(16+4)]}}\\\\ = \sqrt{\frac{[(0.45)(0.55)]}{[(20)]}}\\\\ = \sqrt{\frac{0.2475}{20}}\\\\= \sqrt{0.012375}\\\\=0.111

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= 0.45 \pm 0.111 \times 1.64 \\\\= 0.45 \pm 0.18204

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3 years ago
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ki77a [65]

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4 years ago
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miss Akunina [59]
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4 years ago
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