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It allows you to understand, or comprehend the average fluctuation to the
average. example: the average height for adult men in the United States is about
70", with a standard deviation of around 3". This means that most men (about
68%, assuming a normal distribution) have a height within 3" of the mean (67"-
73"), one standard deviation, and almost all men (about 95%) have a height
within 6" of the mean (64"-76"), two standard deviations.
In summation standard deviation allows us to see the 'average' as a whole.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoIt helps understand the variability in a set of data. Specifically it helps you to see how close values in your data set are to the mean.
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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
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 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 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.
Why do we need the standard deviation?
The standard deviation is a measure of the spread of data.
In the standard normal distribution the standard deviation is always what?
The standard deviation in a standard normal distribution is 1.
Difference Standard Deviation of a portfolio?
difference standard deviation of portfolio
What can cause standard deviation to be negative?
Standard deviation can never be negative.
