Answer:
(0.0706, 0.1294)
Step-by-step explanation:
Confidence interval of a proportion is:
CI = p ± CV × SE
where p is the proportion,
CV is the critical value (z score or t score),
and SE is the standard error.
The sample is large enough to estimate as normal. For 95% confidence level, CV = z = 1.96.
Standard error for a proportion is:
SE = √(pq/n)
SE = √(0.1 × 0.9 / 400)
SE = 0.015
The confidence interval is:
CI = 0.1 ± (1.96)(0.015)
CI = (0.0706, 0.1294)
Round as needed.
Answer:
it is 4xy-4y^2+16x-16y
Step-by-step explanation:
My method is to "square them"
2x. -2y.
2y
8
2x * 2y
2x * 8
-2y*2y
-2y * 8
and add all the products together
Answer:
83
Step-by-step explanation:
1∇2= (2+2^1)
=2+2=4
(4)∇3= (2+3^4)
=2+81
=83
The solution to the linear equation:
8h + 5 - 3h = 8h - 4
is h = 3.
<h3>
How to solve the linear equation?</h3>
Here we have the linear equation:
8h + 5 - 3h = 8h - 4
To solve it, we need to move all the terms with h to the left side of the equation and the terms without x to the right side:
8h - 3h -8h = -4 - 5
-3h = -9
Now we can divide both sides by -3 to get:
h = -9/3 = 3
We conclude that the solution to the linear equation is h = 3.
If you want to learn more about linear equations:
brainly.com/question/1884491
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