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How is standard deviation found?

Anonymous

∙ 12y ago

Updated: 10/18/2022

Formally, the standard deviation is the square root of the variance. The variance is the mean of the squares of the difference between each observation and their mean value.

An easier to remember form for variance is: the mean of the squares minus the square of the mean.

Wiki User

∙ 12y ago

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What does the sample standard deviation best estimate?

The standard deviation of the population. the standard deviation of the population.

What is standard deviation of 155.45?

The standard deviation is 0.

What is the standard deviation of a standard normal distribution?

The standard deviation in a standard normal distribution is 1.

What is the standard deviation of 9?

You need more than one number to calculate a standard deviation, so 9 does not have a standard deviation.

Can a standard deviation of a sample be equal to a standard deviation of a population?

Yes

Related Questions

What are the assumptions of standard deviation?

The standard deviation is the standard deviation! Its calculation requires no assumption.

What does the sample standard deviation best estimate?

The standard deviation of the population. the standard deviation of the population.

What is standard deviation of 155.45?

The standard deviation is 0.

If quartile deviation is 24. find mean deviation and standard deviation?

Information is not sufficient to find mean deviation and standard deviation.

What is the relationship between standard deviation and variance?

Standard deviation is the square root of the variance.

What is the standard deviation of a standard normal distribution?

The standard deviation in a standard normal distribution is 1.

What is the difference between standard error of mean and standard deviation of means?

Standard error of the mean (SEM) and standard deviation of the mean is the same thing. However, standard deviation is not the same as the SEM. To obtain SEM from the standard deviation, divide the standard deviation by the square root of the sample size.

What is the standard deviation of 9?

You need more than one number to calculate a standard deviation, so 9 does not have a standard deviation.

Why do we need the standard deviation?

The standard deviation is a measure of the spread of data.

Difference Standard Deviation of a portfolio?

difference standard deviation of portfolio

Can a standard deviation of a sample be equal to a standard deviation of a population?

Yes

What is standard deviation used for?

Standard deviation is a measure of the spread of data.

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