The size of the sample should be obtained at 2401 in order to be 95% confident
Given that:
Margi of error,
Population proportion,
To Find: The size of the sample that should be obtained in order to be 95% confident
Let the size of the sample be n
Using formula,
Therefore, the size of the sample should be obtained at 2401 in order to be 95% confident
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Answer:
3:2
Step-by-step explanation:
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T-v
7-(-3)
7+3
10
the answer is 10
√8
for the equations of circles: x²+y²= (radius)²