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Q: In a normal distribution what percentage of the data falls within 2 standard deviation of the mean?
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What is the standard deviation of a standard normal distribution?

The standard deviation in a standard normal distribution is 1.


In the standard normal distribution the standard deviation is always what?

The standard deviation in a standard normal distribution is 1.


How does standard normal distribution differ from normal distribution?

The standard normal distribution has a mean of 0 and a standard deviation of 1.


Which normal distribution is also the standard normal curve?

The normal distribution would be a standard normal distribution if it had a mean of 0 and standard deviation of 1.


What percentage of observations of a normal distribution is represented by the mean plus or minus 1.96 standard deviation?

It is 95%


Percentage between 415 and 515 standard deviation 100 and mean is 515?

34.1% with the normal distribution.


A standard normal distribution has a mean of and standard deviation of?

Mean 0, standard deviation 1.


What is Normal of Standard Normal Probability Distribution?

with mean of and standard deviation of 1.


In your own words describe the standard normal distribution?

The standard normal distribution is a special case normal distribution, which has a mean of zero and a standard deviation of one.


What is the distribution with an means of 0 and a standard deviation of 1?

It is called a standard normal distribution.


When the population standard deviation is known the sampling distribution is a?

normal distribution


Is the standard normal distribution has a mean of 1 and standard deviation of 0?

No.