212 + 28% = <span>271.36</span>
<span>Hope it helps! :D</span>
Answer:
The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.
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 z-score that has a p-value of
.
The margin of error is of:

In a clinical test with 2161 subjects, 1214 showed improvement from the treatment.
This means that 
95% confidence level
So
, z is the value of Z that has a p-value of
, so
.
Margin of error:



The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.
Answer:
900
Step-by-step explanation:
4F + F =1125
5F = 1125
F=225
C=4F
C=4(225)=900
900 + 225=1125
Answer:
there is not enough information because x and 55 are parrallel, not congruent.
Step-by-step explanation:
(y-5)=(-3)(x-0)
y-5=-3x
y+3x=5 is the required equation.
but, I dont know why there is so much information in the pic. more than what is required.