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belka [17]
3 years ago
13

Simplify the following ratios:

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0
A) 3:4
b) 2:7
c) 3.5
d) 2:3
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You have drawn a simple random sample of 36 college students, asking each student how much rent they pay per month. You obtain a
Karo-lina-s [1.5K]

Answer:

573-1.690\frac{22}{\sqrt{36}}=566.8033    

573+1.690\frac{22}{\sqrt{36}}=579.1967      

And the 90% confidence interval would be between [566.80 and 579.20]

Step-by-step explanation:

Information given

\bar X=573 represent the sample mean

\mu population mean (variable of interest)

s=22 represent the sample standard deviation

n=36 represent the sample size  

Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

The degrees of freedom are given by:

df=n-1=36-1=35

The Confidence level is 0.90 or 90%, the significance would be \alpha=0.1 and \alpha/2 =0.05, and the critical value for this case would be t_{\alpha/2}=1.690

And replacing we got:

573-1.690\frac{22}{\sqrt{36}}=566.8033    

573+1.690\frac{22}{\sqrt{36}}=579.1967    

And the 90% confidence interval would be between [566.8033 and 579.1967]

6 0
3 years ago
Hey again.. Please answer!!
Molodets [167]

Answer:

I can't see the question

its too small can you type it out?

Step-by-step explanation:

4 0
3 years ago
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What the unit rate for this? “9 inches of snow in 3 hous”
anastassius [24]

Answer:

3 inches per hour

Step-by-step explanation:

divide the number on the y axis (i'm assuming it's inches of snow) by the number on the x axis (i'm assuming its hours)

by doing this you will get 3 inches per hour

4 0
3 years ago
Help please!
Lemur [1.5K]

Answer:

Step-by-step explanation:

a I’m pretty sure

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3 years ago
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(03.01 LC)<br><br> What is the length of leg y of the right triangle? (1 point)
EastWind [94]

Answer:

<h2>A</h2>

Step-by-step explanation:

The complete question is

What is the length of leg y of the right triangle?

A right triangle with hypotenuse 26 and legs 24 and y

  • 10
  • 14
  • 24
  • 26

We need to use the Pythagorean Theorem, where h=26 and x=24,

h^{2} =x^{2} +y^{2}\\ 26^{2}=24^{2}+y^{2}\\y=\sqrt{26^{2}-24^{2}}\\ y=\sqrt{676-576}\\ y=\sqrt{100}\\ y=10

Therefore, the right answer is A. The length of the missing leg is 10 units.

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