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klemol [59]
4 years ago
12

What's the equation for q and r

Mathematics
1 answer:
elena-14-01-66 [18.8K]4 years ago
8 0
5 + 5 = 10
10 + 5 = 15
20 + 5 = 25
40 + 5 = 45

q + 5 = r
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A poll found that 52% of U.S. adult Twitter users get at least some news on Twitter. The standard error for this estimate was 2.
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Answer:

The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is (0.46, 0.58). This means that we are 99% sure that the true proportion of all U.S. adult Twitter users who get some news on Twitter is between these two values.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

A poll found that 52% of U.S. adult Twitter users get at least some news on Twitter. The standard error for this estimate was 2.4%

This means that:

\pi = 0.52, \sqrt{\frac{\pi(1-\pi)}{n}} = 0.024

99% confidence level

So \alpha = 0.01, z is the value of Z that has a p-value of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.52 - 2.575(0.024) = 0.46

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.52 + 2.575(0.024) = 0.58

The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is (0.46, 0.58). This means that we are 99% sure that the true proportion of all U.S. adult Twitter users who get some news on Twitter is between these two values.

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3 years ago
The slope of (0,0),(6,7)
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The equation is y2-y1/ x2-x1= slope, so 7-0/ 6-0= 6/7 or about 0.857.
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Step-by-step explanation:

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3 years ago
Once you have created both sets of numbers, complete the following tasks. In each task, make sure to clearly label which set you
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Answer:

Step-by-step explanation:

We need a picture for me I need a picture

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3 years ago
5: Answer the questions completely: Jordan has a new puppy. She wants to put a fence around part of her yard to cover an area of
yuradex [85]

There are many possible solutions to this problem.

Area (A) = Length (L) x width (w)

200 = L x w (any two numbers whose product is 200 is acceptable)

I am going to choose L=20 and w=10, then A = 20 x 10 = 200

Perimeter (P) = 2L + 2w

= 2(20) + 2(10)

= 40 + 20

= 60

Answer: one possible solution is L=20, w=10, P=60

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3 years ago
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