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The true / real standard deviation ("the mean deviation from the mean so to say") which is present in the population (everyone / everything you want to describe when you draw conclusions)

Q: What is a population standard deviation?

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

No.

Yes

Standard deviation in statistics refers to how much deviation there is from the average or mean value. Sample deviation refers to the data that was collected from a smaller pool than the population.

T-score is used when you don't have the population standard deviation and must use the sample standard deviation as a substitute.

Related questions

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

Yes

No.

The standard deviation if the data is a sample from a population is 7.7115; if it is the population the standard deviation is 7.0396.

the sample standard deviation

Yes.

If the population standard deviation is sigma, then the estimate for the sample standard error for a sample of size n, is s = sigma*sqrt[n/(n-1)]

It can be.

Not a lot. After all, the sample sd is an estimate for the population sd.

If the samples are drawn frm a normal population, when the population standard deviation is unknown and estimated by the sample standard deviation, the sampling distribution of the sample means follow a t-distribution.

Sigma

If repeated samples are taken from a population, then they will not have the same mean each time. The mean itself will have some distribution. This will have the same mean as the population mean and the standard deviation of this statistic is the standard deviation of the mean.