What 0.5628 rounded to nearest hundred
1 answer:
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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.
Answer:
Step-by-step explanation:
We need to find 1/4 of the area of a circle with a radius of 8
Let r be radius
Area of a circle =
Substitute r with 8
Area of a circle =
Now, to find 1/4 of the area, we can create an equation
The answer is
Hope this helps :)
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