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Nastasia [14]
3 years ago
15

Translate "Three is less than thirty-seven into a mathematical expression

Mathematics
1 answer:
uysha [10]3 years ago
5 0
3 < 37
I hope this helps you!
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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

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Please lemme know soon, ty
Mrac [35]

Answer:

PHOTO IS BLACK . SO , I CAN'T ANSWER UR QUESTION

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Solve for x in terms of y and z.<br> Z = XY
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Answer:

x = \frac{z}{y}

Step-by-step explanation:

Given

z = xy ( isolate x by dividing both sides by y )

\frac{z}{y} = x

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Sine = opposite / adjacent.

since the opposite and adjacent lines are used, you need to use some to solve for x.

the answer is sine.
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