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Rashid [163]
2 years ago
11

Select the correct answer. 2V12. 375 What is the estimated value of V30. 736 ОА. 0. 71 OB. 1. 41 2 OD 2. 45​

Mathematics
1 answer:
Brut [27]2 years ago
4 0

Answer:

answer is B. 1.41

Step-by-step explanation:

i just did it on Edmentum 8th grade math.

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Given that a 90% confidence interval for the mean height of all adult males in Idaho measured in inches was [62.532, 76.478]. Us
grigory [225]

Answer:

The confidence interval on this case is given by:

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}} (1)

For this case the confidence interval is given by (62.532, 76.478)[/tex]

And we can calculate the mean with this:

\bar X = \frac{62.532+76.478}{2}= 69.505

So then the mean for this case is 69.505

Step-by-step explanation:

Previous concepts

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

\bar X represent the sample mean  

\mu population mean (variable of interest)  

\sigma represent the population standard deviation  

n represent the sample size  

Assuming the X follows a normal distribution  

X \sim N(\mu, \sigma)

The confidence interval on this case is given by:

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}} (1)

For this case the confidence interval is given by (62.532, 76.478)[/tex]

And we can calculate the mean with this:

\bar X = \frac{62.532+76.478}{2}= 69.505

So then the mean for this case is 69.505

5 0
3 years ago
Please I need help in all of these!
blondinia [14]
For 15 I think it’s B
6 0
3 years ago
Read 2 more answers
Reffect shape A in the line y=-x<br> th<br> 6<br> 2<br><br> A<br> --5-32-10 12345<br> 2 6<br> M
s344n2d4d5 [400]

The rule for the reflection of shape A over the line y = -x is (x, y) ⇒ (-y, -x)

<h3>What is a transformation?</h3>

Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>translation, rotation, reflection and dilation.</em>

Dilation is the increase or decrease in the size of a figure.

The rule for the reflection of shape A over the line y = -x is (x, y) ⇒ (-y, -x)

Find out more on transformation at: brainly.com/question/4289712

#SPJ1

7 0
2 years ago
Anna has twice as many video games as Kyle. Maurice has 5 more video games than Anna. The total number of video games is less th
NNADVOKAT [17]

Answer:

She has 17 video games. (Possible answer.) Hope this helps!

Step-by-step explanation:

2x+5

     -5.     -5

2x

2.      2

X

or 17 since it is less than 17.2

5 0
2 years ago
Read 2 more answers
153 is 0.9% of what number? Tell which equivalent ratios you used to find the solution
Naddik [55]
0.9% / 100% = 0.009
= 9/1000

equivalent ratio:
9/1000 = 153/x

cross multiply
9x = 153,000
x = 153,000/9
x = 17,000

153/17,000 = 0.009
3 0
3 years ago
Read 2 more answers
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