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2 years ago

complete the concept map by naming the sampling that you have learned in this module then briefly discuss each

Mathematics

1 answer:

Dmitry [639]2 years ago

6 0

In systematic sampling, individuals are selected at regular intervals from the sampling frame.

<h3>How to explain the sampling?</h3>

Stratified sampling- In this method, the population is first divided into subgroups (or strata) who all share a similar characteristic

<u>Clustered sampling.</u>- a clustered sample, subgroups of the population are used as the sampling unit, rather than individuals. The population is divided into subgroups, known as clusters, which are randomly selected to be included in the study

<u>Simple random sampling. </u>-In this case each individual is chosen entirely by chance and each member of the population has an equal chance, or probability, of being selected.

Quota sampling--This method of sampling is often used by market researchers. Interviewers are given a quota of subjects of a specified type to attempt to recruit.

Learn more about sampling on:

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Can someone pls help me find x on this triangle

11Alexandr11 [23.1K]

Answer:

Angles of a triangle add up to <u>180 degrees. </u>

<u />

So, if we add up all three of the angles of this triangle, we should have a sum of 180 degrees.

4x-10+x+26+x+14=180

4x-10+2x+40=180

6x+30=180

6x=150

x=25

Let me know if this helps!

4 0

3 years ago

I don’t know the answer

anastassius [24]

I THINK IT IS B

B) D(X)= X-8x4

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4 years ago

A two-state system is in an environment at temperature 500 K. The energy of state 1 is 4.1e-20 J, and the energy of state 2 is 5

katovenus [111]

Complete Question

A two-state system is in an environment at temperature 500 K. The energy of state 1 is $E_1=4.1e-20 J$ , and the energy of state 2 is $E_2= 5.7e-20 J$ . Let P(1) be the probability of finding the system in state 1, and be the probability of finding the system in state 2. What is the ratio P(2)/P(1)

Answer:

$X=0.0984$

Step-by-step explanation:

From the question we are told that:

Temperature T=500 K

Energy of state 1 $E_1=4.1e-20 J$ ,

Energy of state 2 is $E_2= 5.7e-20 J$

Generally the equation for Probability of finding the system in state is mathematically given by

$P(1)=e ^{\frac{-E_1}{KT}}$

Therefore

For Probability of finding the system in state 1 $P(1)$

$P(1)=e ^{\frac{-E_1}{KT}}$

Where

K is Boltzmann constant

$K=1.38*10^{-23}$

$P(1)=e ^{\frac{-(4.1e-20 J)}{1.38*10^{-23}*500}}$

For Probability of finding the system in state 1 $P(2)$

$P(2)=e ^{\frac{-(5.7e-20 J)}{1.38*10^{-23}*500}}$

Generally the equation for The Ratio of $P(2)$ and $P(2)$ is mathematically given by

$X=\frac{P(2)}{p(1)}$

$X=e ^{\frac{E_1-E_2}{KT}}$

$X=e ^{\frac{-(4.1-5.7)e-20 J)}{1.38*10^{-23}*500}}$

$X=0.0984$

3 0

3 years ago

What is the quotient and remainder of 18 divided by 867?

SVEN [57.7K]

I hope I can be of assistance today!

$\mathrm{Divide}\:18\:\mathrm{by}\:867\:\mathrm{to\:get}\:0 \ \textgreater \ \begin{matrix}\space\space\space\space\space\space\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 867\overline{|\smallspace18}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}$

$\mathrm{Multiply\:the\:quotient\:digit}\:\left(0\right)\:\mathrm{by\:the\:divisor}\:867$
$\begin{matrix}\space\space\space\space\space\space\space\space\space\space\emptyspace0\space\space\space\space\space\space\space\space\space\space\space\space\\ 867\overline{|\smallspace18}\space\space\space\space\space\space\space\space\space\space\space\space\\ \space\space\space\space\space\space\space\space\space\space\underline{\emptyspace0}\space\space\space\space\space\space\space\space\space\space\space\space\end{matrix}$

$\mathrm{Subtract}\:0\:\mathrm{from}\:18$
Due to a formula limit, I cannot apply the visual product here but I assume you can easily do this part! I believe I will be switching over to paint.net to provide pictures of work for long division!

$\mathrm{The\:solution\:for\:Long\:Division\:of}\:\frac{18}{867}\:\mathrm{is}\:0\:\mathrm{with\:a\;remainder\:of}\:18$

Hope this helps!

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3 years ago

The radius of a circle is 5 cm. What is the radius of another circle whose area is 25 times that of the first one?

zhannawk [14.2K]

Answer:

Step-by-step explanation:

a₁ = πr₁⁵ = 25π cm²

a₂ = 25(25π) = 625π cm²

r₂ = 25 cm

4 0

3 years ago