Answer:
Option d.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is:
79 percent of adults age 18 years and older in the United States use the Internet.
This means that 
98% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Which of the following should be used to find the sample size (n) needed?
We have to find n for which 
So the equation is:
Option d.
<AEB and <DEC are equal so:
5x-10=3x+40
5x-3x=40+10
2x=50
x=25
<AEB= 5x-10
<AEB= 5*25-10
<AEB=115
20% because:
rate of Increase = ( final - initial ) / initial * 100
rate of increase = ( 12 - 10 ) / 10 * 100
rate of Increase = 2 / 10 * 100
rate of Increase = 20
Answer option a is the answer
Y - y₁ = m(x - x₁)
y - 3 = -6(x - 0)
y - 3 = -6(x) + 6(0)
y - 3 = -6x + 0
+ 3 + 3
y = -6x + 3
