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noname [10]
3 years ago
15

Answer asap plz and thank you a head of time question in pic

Mathematics
1 answer:
ololo11 [35]3 years ago
6 0
I think  the answer  Is C I hope it helped you 
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Mrs. Crosby had 350 sheets of paper. She used 8 sheets of paper for a craft. She then gave each student 4 sheets of paper. Which
Vera_Pavlovna [14]
B = 2 i had this question
8 0
2 years ago
The probability that a house in an urban area will develop a leak is 55​%. if 2020 houses are randomly​ selected, what is the pr
k0ka [10]
<span>The probability that a house in an urban area will develop a leak is 55​%. if 20 houses are randomly​ selected, what is the probability that none of the houses will develop a​ leak? round to the nearest thousandth.

Use binomial distribution, since probability of developing a leak,  p=0.55 is assumed constant, and
n=20, x=0
and assuming leaks are developed independently between houses,
P(X=x)
=C(n,0)p^x* (1-p)^(n-x)
=C(20,0)0.55^0 * (0.45^20)
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7 0
3 years ago
A researcher is 95% confident that the interval from 5.2 hours to 7.8 hours captures u = the true mean amount of time
igor_vitrenko [27]
<h3>Answer: Choice B</h3>

No, this is not a plausible value for the population mean, because 5 is not within the 95% confidence interval.

====================================================

Explanation:

The greek letter mu is the population mean. It has the symbol \mu which looks like the letter 'u' but with a tail at the front or left side.

The question is asking if mu = 5 is plausible if the researcher found the 95% confidence interval to be 5.2 < mu < 7.8

We see that 5 is <u>not</u> in that interval. It's a bit to the left of 5.2

Since mu = 5 is not in the interval, it's not a plausible value for the population mean.

Have we ruled it out with 100% confidence? No. Such a thing is not possible. There's always room for (slight) error. The researcher would need to do a census to be fully confident; however, such practices are very time consuming and expensive. This is the main reason why statistics is important to try to estimate the population with a sample.

8 0
2 years ago
What is 5/ 8 x 4/ 5?<br> A. 1/2<br> B.1/3<br> C.2/9<br> D.3/8.<br> (in fraction form)
ehidna [41]
<span>5/ 8 x 4/ 5
=20/40
=1/2

answer is </span>A. 1/2
4 0
3 years ago
Read 2 more answers
Rate, how many hours will it take the ship to travel 100 miles?<br> hours
kifflom [539]

Answer:

I would say about 5 or 6 hours.

Step-by-step explanation:

3 0
3 years ago
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