Question

When a random sample of size n is taken from a large population, the same has a large margin of approximately _____.

Answer 1

The margin of error is approximately

$\pm\frac{1}{\sqrt[]{n}}$

where n is the size of the sample.

2020 adults were sampled, thus n = 2020:

Thus, the sample has an error of:

$\pm\frac{1}{\sqrt[]{2020}}=\pm0.02224970797449923946989914895593$

Expressing in %.

Margin of error = 2.22%