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You cannot have a standard deviation for 1 number.

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13y ago
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Q: How many standard deviations is 99?
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Related questions

How many standard deviations above and below the mean contains 99 percent of the population?

2.576 sd


How many standard deviations is 16.50 from the mean?

How many standard deviations is 16.50 from the mean?


This tells how many standard deviations a measurement is away from the mean?

Z-Score tells how many standard deviations a measurement is away from the mean.


How many standard deviations is 19 from the mean?

That depends on what the standard deviation is.


What is the measures that fall beyond three standard deviations of the mean called?

You may be referring to the statistical term 'outlier(s)'. Also, there is a rule in statistics called the '68-95-99 Rule'. It states that in a normally distributed dataset approximately 68% of the observations will be within plus/minus one standard deviation of the mean, 95% within plus/minus two standard deviations, and 99% within plus/minus three standard deviations. So if your data follow the classic bell-shaped curve, roughly 1% of the measures should fall beyond three standard deviations of the mean.


What tells how many standard deviations a measurement is away from the mean?

the Z score, or standard score.


How many standard deviations above the mean is the 90th percentile?

It is 1.28


What is the sum of the deviations from the mean?

The sum of standard deviations from the mean is the error.


How many standard deviations are 95 percent of measurements away from the mean?

95 percent of measurements are less than 2 standard deviations away from the mean, assuming a normal distribution.


Tells how many standard deviations a measurement is away from the mean?

z score


What does normality mean in health and social care?

All minor deviations occurring with two standard deviations under the Gaussian curve are considered normal. Deviations occurring outside of two standard deviations are considered abnormal.


In a standard normal distribution 95 percent of the data is within plus standard deviations of the mean?

95% is within 2 standard deviations of the mean.