What is a 'Standard Error'
A standard error is the standard deviation of the sampling distribution of a statistic. Standard error is a statistical term that measures the accuracy with which a sample represents a population. In statistics, a sample mean deviates from the actual mean of a population; this deviation is the standard error.
BREAKING DOWN 'Standard Error'
The term "standard error" is used to refer to the standard deviation of various sample statistics such as the mean or median. For example, the "standard error of the mean" refers to the standard deviation of the distribution of sample means taken from a population.
The smaller the standard error, the more representative the sample will be of the overall population. The standard error is also inversely proportional to the sample size; the larger the sample size, the smaller the standard error because the statistic will approach the actual value.

Sampling
A process used in statistical analysis in which a predetermined ... 
NonSampling Error
A statistical error caused by human error to which a specific ... 
Standard Deviation
1. A measure of the dispersion of a set of data from its mean. ... 
Central Limit Theorem  CLT
A statistical theory that states that given a sufficiently large ... 
Residual Standard Deviation
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Systematic Sampling
A type of probability sampling method in which sample members ...

Fundamental Analysis
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Standard error is a statistical term that measures the accuracy with which a sample represents a population. 
Economics
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Fundamental Analysis
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Investing
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Forex Education
Trading With Gaussian Models Of Statistics
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Active Trading Fundamentals
Hypothesis Testing in Finance: Concept & Examples
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The Uses And Limits Of Volatility
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Economics
Understanding Statistics
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Mutual Funds & ETFs
Stock Market Risk: Wagging The Tails
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Using Historical Volatility To Gauge Future Risk
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What is the difference between a simple random sample and a stratified random sample?
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When is it better to use systematic over simple random sampling?
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What is the difference between the standard error of means and standard deviation?
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