I'm not really sure but I know that the answer is <u>definitely not</u> 0.25 or 0.5.
Answer:
The minimum number of cities we need to contact is 96.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence interval
, we have the following confidence interval of proportions.

In which
Z is the zscore that has a pvalue of
.
The margin of error is:

95% confidence interval
So
, z is the value of Z that has a pvalue of
, so
.
In this problem, we have that:







The minimum number of cities we need to contact is 96.
4 x’s for 1/4
2 x’s for 2/4
1 x for 3/4
2 x’s for 1
The answer is 16 because 16•5=80 and then 80-9=71 yk?
Answer:
5/6 and 7/9
Step-by-step explanation:
A and D are less than 2/3 so B and C is correct.
Hope this helps plz mark brainliest :D