Answer:
The answer is below
Step-by-step explanation:
Given that:
Confidence interval (C) = 99%, mean (μ) = 19.5, standard deviation (σ) = 5.2, sample size (n) = 35
α = 1 - C = 1 - 0.99 = 0.01
α/2 = 0.005
The z score of α/2 (0.005) is the same as the z score 0.495 (0.5 - 0.005) which is equal to 2.576.
The margin of error (E) is given as:
![E=Z_\frac{\alpha}{2}*\frac{\sigma}{\sqrt{n} } \\\\E=2.576*\frac{5.2}{\sqrt{35} } \\\\E=2.264](https://tex.z-dn.net/?f=E%3DZ_%5Cfrac%7B%5Calpha%7D%7B2%7D%2A%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%20%7D%20%20%5C%5C%5C%5CE%3D2.576%2A%5Cfrac%7B5.2%7D%7B%5Csqrt%7B35%7D%20%7D%20%5C%5C%5C%5CE%3D2.264)
The confidence interval = (μ ± E) = (19.5 ± 2.264) = (17.236, 21.764).
The confidence interval is between 17.236 and 21.764.
A, b, c : independent
x, y : dependent
Answer:
y = 2 - x^2
Substitute the different values of x to find y.
Input x -2 -1 0 1 2
Output y -2 1 2 1 -2
Graph this.
Please mark Brainliest :)
Red - -2,-2
Blue - -1,1
Black - 0,2
Pink - 1,1
Green - 2,-2
5/12 times 3= 1.25, 1 25/100
1 1/4 is the answer