Answer:
(-2, 4)
Step-by-step explanation:
~When reflecting a point of the x-axis, the x value (or first number inside the parenthesis) does not change.
The reason the x-value does not change is because you are reflecting over the x-axis, making the point go up or down. That will change the y-value but the x-value only changes if you move to the left or the right. In this case, you can see that the point's x-value is -2, so that will not change. It's current y-value however is -4. When reflecting over an axis, the number that is changing (in this case the y-value) will just be flipped from positive to negative, or vise versa. In this case, -4 will be reflected to be 4, making point C reflected over the x-axis (-2, 4).
Answer:
The distance is 3.5
Step-by-step explanation:
Here you go.. hope this helps
Answer:
as p decreases, sigma decreases.
Step-by-step explanation:
Given that 35%are hispanic. For a sample of 17 members
n = 17
p = 0.35
and the number of Hispanics on the committee would have the binomial distribution
a) Mean of X = E(x) = ![np = 17(0.35)\\= 5.95](https://tex.z-dn.net/?f=np%20%3D%2017%280.35%29%5C%5C%3D%205.95)
b) Std dev X = ![\sqrt{npq} =\sqrt{5.95(0.65)} \\=1.9665](https://tex.z-dn.net/?f=%5Csqrt%7Bnpq%7D%20%3D%5Csqrt%7B5.95%280.65%29%7D%20%5C%5C%3D1.9665)
c) Here n =17 and p =0.1
![Mean = 1.7\\\sigma = \sqrt{17(0.1)(0.9)} =1.234](https://tex.z-dn.net/?f=Mean%20%3D%201.7%5C%5C%5Csigma%20%3D%20%5Csqrt%7B17%280.1%29%280.9%29%7D%20%3D1.234)
d) When p = 0.01
![Mean = 0.17\\\sigma = 0.410](https://tex.z-dn.net/?f=Mean%20%3D%200.17%5C%5C%5Csigma%20%3D%200.410)
Thus we find that as p decreases, sigma decreases.