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kogti [31]
3 years ago
9

Help a brother out with this math shi

Mathematics
1 answer:
liraira [26]3 years ago
6 0

(7^13)^3 * 7^0

= 7^(13 * 3) * 1

= 7^39

Answer

7^39

P.S. Any number (except 0) to the 0 exponent is equal to 1

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Determine mu Subscript x overbar and sigma Subscript x overbar from the given parameters of the population and the sample size.
pentagon [3]

Answer:

\bar X= \mu = 25

\sigma_{\bar X}= \frac{7}{\sqrt{15}}= 1.807

Step-by-step explanation:

Previous concepts

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".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the following conditions

Where \mu=25 and \sigma=7

And for this case we select a sample size of n= 15. and we want to know the distribution for the sample mean \bar X. We can assume that the distribution for \bar X is approximately normal and given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

Asuming that the distribution for X is also approximately normal. So then the parameters are:

\bar X= \mu = 25

\sigma_{\bar X}= \frac{7}{\sqrt{15}}= 1.807

8 0
3 years ago
2. Mr. Holms used of a carton of orange
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1/2 fraction of whole carton was used for each serving

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What is the slope of the line on the graph?<br><br> Enter your answer in the box.
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6 0
3 years ago
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What is 21⁄4 plus 4 3⁄10? <br><br> A. 611⁄20<br> B. 613⁄20<br> C. 61⁄4<br> D. 61⁄2
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Convert 1/4 and 3/10 to have a common denominator:

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3 years ago
What’s it called when 3^2 ? how do you say that
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"Three to the power of two"

or

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or

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4 years ago
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