#### margin of error calculator

Population size: is required
Confidence (%)
95%

## ?What is margin of error in a survey

Margin of error, also called the confidence interval, is a statistical measurement of difference between survey results and the population value, expressed as a percentage. Within the survey ecosystem, the margin of error measures the difference between your survey results and how accurately they reflect the views of the overall population.

Surveying calls upon a smaller group (your survey respondents) to represent a much larger one (the target market or total population).You can think of margin of error as a way of measuring how effective your survey is. The smaller the margin of error, the more confidence you may have that your results will be representative of the population. The greater the margin of error, the farther they may stray from the views of the total population.

## Population size

Population size is the total number of people in the group you are interested in, or in this case, trying to reach with your survey. For example, if you were taking a random sample of students in a high school, your population would be the total number of students attending that school. Similarly, if you wanted a survey on the United States, the size of the population would be the total number of people in the USA.

## Population size

Population size is the total number of people in the group you are interested in, or in this case, trying to reach with your survey. For example, if you were taking a random sample of students in a high school, your population would be the total number of students attending that school. Similarly, if you wanted a survey on the United States, the size of the population would be the total number of people in the USA.

## Population size

Population size is the total number of people in the group you are interested in, or in this case, trying to reach with your survey. For example, if you were taking a random sample of students in a high school, your population would be the total number of students attending that school. Similarly, if you wanted a survey on the United States, the size of the population would be the total number of people in the USA.

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