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san4es73 [151]
3 years ago
13

37 is ____ % of 148; 148 is ____ % of 37

Mathematics
2 answers:
pashok25 [27]3 years ago
4 0

Answer:

25% ; 400%

Step-by-step explanation:

Kisachek [45]3 years ago
3 0

Answer:

37 is 25% or 148

148 is 400% of 37

Step-by-step explanation:

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Repeated student samples. Of all freshman at a large college, 16% made the dean’s list in the current year. As part of a class p
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Answer:

a) p-hat (sampling distribution of sample proportions)

b) Symmetric

c) σ=0.058

d) Standard error

e) If we increase the sample size from 40 to 90 students, the standard error becomes two thirds of the previous standard error (se=0.667).

Step-by-step explanation:

a) This distribution is called the <em>sampling distribution of sample proportions</em> <em>(p-hat)</em>.

b) The shape of this distribution is expected to somewhat normal, symmetrical and centered around 16%.

This happens because the expected sample proportion is 0.16. Some samples will have a proportion over 0.16 and others below, but the most of them will be around the population mean. In other words, the sample proportions is a non-biased estimator of the population proportion.

c) The variability of this distribution, represented by the standard error, is:

\sigma=\sqrt{p(1-p)/n}=\sqrt{0.16*0.84/40}=0.058

d) The formal name is Standard error.

e) If we divided the variability of the distribution with sample size n=90 to the variability of the distribution with sample size n=40, we have:

\frac{\sigma_{90}}{\sigma_{40}}=\frac{\sqrt{p(1-p)/n_{90}} }{\sqrt{p(1-p)/n_{40}}}}= \sqrt{\frac{1/n_{90}}{1/n_{40}}}=\sqrt{\frac{1/90}{1/40}}=\sqrt{0.444}= 0.667

If we increase the sample size from 40 to 90 students, the standard error becomes two thirds of the previous standard error (se=0.667).

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3 years ago
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MArishka [77]

Answer:

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Step-by-step explanation:

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3 years ago
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<h2>(A.C.) 54 - 36 = m</h2>

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7x+19 = 11x-89

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