Answer:
Step-by-step explanation:
a)
Number of sample, n = 100
p = 0.78
q = 1 - p = 1 - 0.78
q = 0.22
For a confidence level of 90%, the corresponding z value is 1.645.
The formula for determining the error bound for the proportion is
z × √pq/n
= 1.645 ×√(0.78 × 0.22)/100
= 1.645 × 0.0414 = 0.068
The upper boundary of the population proportion is
0.78 + 0.068 = 0.85
The lower boundary of the population proportion is
0.78 - 0.068 = 0.71
b) For a confidence level of 95%, the corresponding z value is 1.96.
Therefore,
= 1.96 ×√(0.78 × 0.22)/100
= 1.96 × 0.0414 = 0.081
The upper boundary of the population proportion is
0.78 + 0.081 = 0.86
The lower boundary of the population proportion is
0.78 - 0.081 = 0.7
Answers are as follows
B = 51.5
a = 34.6
c = 55.6
Y=Mx+b
Y=-3x-42
Please mark brainliest. Thank you
Answer:
5x²(2y + 5)
Step-by-step explanation:
10x²y + 25x²
to start we have to express the parts of the function as multiplication
2*5*x²*y + 5*5*x²
then we have to see that they have both parts of the sum in common, and what they have in common we get out of common invoice and what is left we add together.
5x²(2y + 5)
Answer:
The number ins't simplified
Step-by-step explanation:
If you convert it into a mixed number it will be a lot easier to see where it goes. In this case tho 6 divided by 3 just equals 2, so the two is what you put on a number line.
