Sample Percent in Favor Margin of Error

A 52% 4.2%

B 48% 1.6%

The results of two random samples of votes for a proposition are shown above. The samples were selected from the same population, and the margins of error were calculated using the same method. Which of the following is the most appropriate reason that the margin of error for sample A is greater than the margin of error for sample B?

Question

Sample	Percent in Favor	Margin of Error
A	52%	4.2%
B	48%	1.6%

Accepted Answer

Sample A had a smaller sample size.

Answer

Sample A had a smaller number of votes that could not be recorded.

Answer

Sample A had a higher percent of favorable responses.

Answer

Sample A had a larger sample size.