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NeX [460]
2 years ago
8

Which equation best represents the line graphed above? x = –1 x = 1 y = –1 y = x – 1

Mathematics
2 answers:
White raven [17]2 years ago
8 0

I think you forgot the graph. Please add it.

xxMikexx [17]2 years ago
8 0

Answer:

I believe the answer is A: x = - 1

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Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }

n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, Z_\frac{\alpha }{2} is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

E = 5% = 0.05, Z_\frac{\alpha }{2} = 3. Hence:

n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900

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3 years ago
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attashe74 [19]

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8 0
1 year ago
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andrezito [222]

Answer:

D.

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2 years ago
Find the mean of 11, – 7, – 14, 10, and -5.
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Step-by-step explanation:

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3 0
3 years ago
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