2 years ago

Quanto é 2+2????????????????

Mathematics

1 answer:

mel-nik [20]2 years ago

4 0

4 xd cuando es .00 +un pendejo

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A survey of households in a small town showed that in 850 of 1,200 sampled households, at least one member attended a town meeti

Iteru [2.4K]

Answer:

Hence the confidence interval is ( 0.6745, 0.7422).

Step-by-step explanation:

Now the given are

Sample size = n = 1200

x = 850

Sample proportion is

$\hat{p}=\frac{x}{n}=\frac{850}{1200}=0.7083$

We have to construct 99% confidence interval for the population proportion.

Formula Used:

$(\hat{p}-E , \hat{p}+E)$

Here E is a margin of error.

$E =Zc\times\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}$

Zc = 2.58

$E =2.58\times\sqrt{\frac{0.7083*(1-0.7083)}{1200}}\\\\E=2.58\times\sqrt{0.000172}=0.0339$

So confidence interval is ( 0.7083 - 0.0339 , 0.7083 + 0.0339)

= ( 0.6745 , 0.7422).

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3 years ago

An airplane flies at an altitude of 28,500 feet. A submarine dives to a depth of 900 feet below sea level. What is the differenc

weeeeeb [17]

29,400

Mark brainliest please

Hope this helps you

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3 years ago

Help 8th grade adv math

grigory [225]

Answer:

6, -6

Step-by-step explanation:

The 2nd roots of 36 are 6 and -6 since

6^2 = 36

and

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3 years ago

What is 7/8 of 1 3/4

lisabon 2012 [21]

Answer:

49/32

≈ 1.531

Step-by-step explanation:

Whenever you see the word "of," you know you need to multiply.

7/8 of 1 3/4

7/8 * 1 3/4

Simplify 1 3/4 to 4/4 + 3/4 = 7/4.

7/8 * 7/4

49/32 ≈ 1.531

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3 years ago

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Which is a associative property 7×(3+5)=21+35 or 7×(3×5)=(7×3)×5 or7×(3×5)=7×(5×3)

Ganezh [65]

I think the answer is 7×(3×5)=(7×3)×5

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3 years ago