Answer:
y = kx.
Step-by-step explanation:
A proportional relationship between a quantity y and a quantity x that has a constant of proportionality k is represented by the equation y = kx.
Answer:
415
Step-by-step explanation:
Confidence Level = 98%
Z-value for this confidence level = z = 2.326
Margin of error = E = 0.08
Mean = u = 6.6
Standard deviation = ![\sigma=0.7](https://tex.z-dn.net/?f=%5Csigma%3D0.7)
Required Sample Size = n = ?
The formula for margin of error is:
![E=z\frac{\sigma}{\sqrt{n}}](https://tex.z-dn.net/?f=E%3Dz%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D)
Re-arranging the equation for n, and using the given values we get:
![n=(\frac{z\sigma}{E} )^{2}\\\\ n=(\frac{2.326 \times 0.7}{0.08} )\\\\ n=415](https://tex.z-dn.net/?f=n%3D%28%5Cfrac%7Bz%5Csigma%7D%7BE%7D%20%29%5E%7B2%7D%5C%5C%5C%5C%20n%3D%28%5Cfrac%7B2.326%20%5Ctimes%200.7%7D%7B0.08%7D%20%29%5C%5C%5C%5C%20n%3D415)
Thus, the minimum sample size required to create the specified confidence interval is 415
Answer: 1/3125
Step-by-step explanation:
625,125,25........ and so on
Answer: set 2 : O{(-6, -7), (-3, -3), (-2,-8), (-6,4)}
Step-by-step explanation: In order for a set of ordered pairs to be a function, then each input can correspond to only 1 output. In the context of your question, this means there cannot be two ordered pairs which have the same x value. The second set of ordered pairs does not represent a function because the input x = -6 corresponds to two different outputs, y = -7 and y = 4.