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Wewaii [24]
3 years ago
15

Please help and answer all questions from the attachments. Will give brainliest to correct answers from attachments.

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0

Answer:

See attachments

Step-by-step explanation:

Hope this helps.

Nikitich [7]3 years ago
3 0

Answer:

See attachments

Step-by-step explanation:

Hope this helps.

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JUHE
Amanda [17]
The answer is 21 because that’s when I finally touch a goldfish
8 0
3 years ago
Read 2 more answers
A Florida neighborhood is comprised of a total of 250 houses of which 12% are in foreclosure. A random sample of 91 homes from t
natka813 [3]

Answer:

the standard error of the proportion is 0.0272

Step-by-step explanation:

We have that if the sample size is greater than 5% of the entire population, a finite population correction factor (fpc) is multiplied with the standard error :

fpc = \sqrt{\frac{N -n}{N -1} }

We know that N = 250 n = 91, replacing:

fpc = \sqrt{\frac{250 - 91}{250 -1} }

fpc = 0.799

Now, the formula would then be:

SE  = \sqrt{\frac{p * (1 -p)}{n} }*fpc

Now replacing, knowing that p = 0.12

SE= \sqrt{\frac{0.12 * (1 - 0.12)}{91} }*0.799

SE = 0.0272

So the standard error of the proportion is 0.0272

6 0
3 years ago
Coefficient of (2x+y^2)^5
Montano1993 [528]
The coefficient is 2
the base is x
the exponent is ^5

thx plz mark brainliest
6 0
4 years ago
Read 2 more answers
A random sample of n = 16 professors from a university has been selected; salaries have been plotted on the following Q-Q plot.
Semenov [28]

Answer:

The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance.

The conclusion we can make is that there is 95% of probability that the mean of the population (professor's average salary) is within $99,881 and $171,172.

Step-by-step explanation:

This is a case in which, from a sample os size n=16, a confidence interval is constructed.

The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance. In this case, the probability that the real mean is within the interval is 95%.

5 0
3 years ago
An online ticket seller charges $44 for each ticket to a concert, plus a fixed handling fee of $12. Define the unknown variables
const2013 [10]

The unknown variables are how many tickets are being bought and the total.


t=tickets

x=total


44t+12=x

6 0
4 years ago
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