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Assoli18 [71]
3 years ago
5

A survey asks 48 randomly chosen students if they plan to buy a school newspaper this week. Of the 48 surveyed,32 plant to buy a

school newspaper. If 360 students bought papers,predict the number of students enrolled at the school.
Mathematics
1 answer:
spayn [35]3 years ago
4 0
The answer is 540 because 32/48 is 2/3 and 360/540 equals 2/3
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At the city museum, child admission is $6.20 and adult admission is $9.90 . On Monday, three times as many adult tickets as chil
murzikaleks [220]

Can you please delete this. I have answered it wrong. Thanks

7 0
3 years ago
There were 324 adults surveyed. Among the participants, the mean number of hours of sleep each night was 7. 5 and the standard d
NeTakaya

The margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

<h3>What is the margin of error?</h3>

The margin of error can be defined as the amount of random sampling error in the results of a survey. It is given by the formula,

\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\frac{\sigma^{2}}{n}}

\text{MOE} = margin of error

\gamma = confidence level

z_{\gamma} = quantile

σ = standard deviation

n = sample size

As it is given that the sample size of the survey is 324, while the standard deviation of the survey is 1.6.

We know that the value of the z for 95% confidence interval is 1.96. Therefore, using the formula of the standard of error we can write it as,

\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\dfrac{\sigma^{2}}{n}}\\\\\text{MOE}_{\gamma}=1.96 \times \sqrt{\dfrac{1.6^{2}}{324}}\\\\\text{MOE}_{\gamma}=0.1742

Hence, the margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

Learn more about Margin of Error:

brainly.com/question/6979326

5 0
2 years ago
3/8 of 24 is equal to?​
o-na [289]

Answer:

9

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1. Avital counted 40 green cars and 20 silver cars in the parking lot. If the number of green cars stay the same, how many more
Luba_88 [7]
X represents the number that would be added to the silver cars.


x/40= 4
X=40x4
x=160

Subtract the given 20 from 160 because 160 is the total number
160-20=140
Therefore 140 would be added to 20 silver cars to get the ratio1:4
8 0
3 years ago
Pls help me out in finding the right answers
Mila [183]
The answers are 1, 2, 5, and 7
8 0
2 years ago
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