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irakobra [83]
3 years ago
6

If Lauren reads for 30 minutes in 6 minutes in a 240 page novel,what is the constant of proportionally

Mathematics
2 answers:
Elanso [62]3 years ago
7 0

Answer:

Lauren reads 5 pages per minute.

Step-by-step explanation:

Just divide 30 by 6 to get your answer

goldfiish [28.3K]3 years ago
4 0

Answer:

The Constant of Proportionality is 5 pages per minute.

Step-by-step explanation:

P.S Can I have brainliest?

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2 years ago
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the
Vesna [10]

Answer:

A sample size of at least 1,353,733 is required.

Step-by-step explanation:

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

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

In which

z is the zscore that has a pvalue of .

The margin of error is:

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

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.  

You would like to be 98% confident that you esimate is within 0.1% of the true population proportion. How large of a sample size is required?

We need a sample size of at least n.

n is found when M = 0.001.

Since we don't have an estimate for the proportion, we use the worst case scenario, that is \pi = 0.5

So

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

0.001 = 2.327\sqrt{\frac{0.5*0.5}{n}}

0.001\sqrt{n} = 2.327*0.5

\sqrt{n} = \frac{2.327*0.5}{0.001}

(\sqrt{n})^{2} = (\frac{2.327*0.5}{0.001})^{2}

n = 1353732.25

Rounding up

A sample size of at least 1,353,733 is required.

5 0
3 years ago
Calculate the geometric mean of 2 and 200
kakasveta [241]
The geometric mean of 2 & 200 is *(20)*
5 0
2 years ago
4.13 rounded to one decimal point
arlik [135]
The answer is 4.1
If the number is below 5, you round down, if it's 5 or above, you round up.
8 0
3 years ago
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atroni [7]

Answer:

P is complementary to x

Step-by-step explanation:

Complementary means adding to 90 degrees

P+x = 90 degrees

So P is complementary to x

4 0
2 years ago
Read 2 more answers
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