Answer:¿Es 4x² + 20x o 4x-20x?
Step-by-step explanation:
Answer:
Based on the data, this is an example of causation.
Step-by-step explanation:
i got it right on the test .
Answer: ![\pm0.1706](https://tex.z-dn.net/?f=%5Cpm0.1706)
Step-by-step explanation:
Given : Sample size : n= 33
Critical value for significance level of
: ![z_{\alpha/2}= 1.96](https://tex.z-dn.net/?f=z_%7B%5Calpha%2F2%7D%3D%201.96)
Sample mean : ![\overline{x}=2.5](https://tex.z-dn.net/?f=%5Coverline%7Bx%7D%3D2.5)
Standard deviation : ![\sigma= 0.5](https://tex.z-dn.net/?f=%5Csigma%3D%200.5)
We assume that this is a normal distribution.
Margin of error : ![E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}](https://tex.z-dn.net/?f=E%3D%5Cpm%20z_%7B%5Calpha%2F2%7D%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D)
i.e. ![E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706](https://tex.z-dn.net/?f=E%3D%5Cpm%20%281.96%29%5Cdfrac%7B0.5%7D%7B%5Csqrt%7B33%7D%7D%3D%5Cpm0.170596102837%5Capprox%5Cpm0.1706)
Hence, the margin of error is ![\pm0.1706](https://tex.z-dn.net/?f=%5Cpm0.1706)
I think 20 ft bc microwaves are cool