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Standard deviation

standard deviation

Statistical index of the degree of deviation from central tendency, namely, of the variability within a distribution; the square root of the average of the squared deviation's from the mean.

A measure of dispersion or variation used to describe a characteristic of a frequency distribution. The degree of variation in a sample from the mean value.

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do you know what mean and standard deviation are?

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by JackBean
Mon May 06, 2013 3:24 pm
Forum: Human Biology
Replies: 6
Views: 2636

Biology Question

... is no difference between means of two samples of measurements is? A –Standard Deviation B – Variance C – Alternative Hypothesis D – Standard Error or the Mean E – Mean F ...

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by Terra
Mon Jan 30, 2012 4:48 am
Forum: General Discussion
Topic: Biology Question
Replies: 0
Views: 921

Re: Where do we go from here?

... or more criminal offenses by age twenty had IQ scores on average a full standard deviation below nonoffenders" Mind you, there is a theory that high IQ criminals are simply ...

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by TheLoveLlama
Sun Jun 19, 2011 4:54 am
Forum: Evolution
Topic: Where do we go from here?
Replies: 41
Views: 35603

equal amounts of total protein

... the following distribution between the samples: Average = 265.9 ug/ml Standard Deviation (SD) = 25.0 Min = 213.2 Max = 332.6 My question is whether such a variation (SD=10% ...

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by fth1
Thu Apr 21, 2011 2:21 pm
Forum: Molecular Biology
Topic: equal amounts of total protein
Replies: 2
Views: 1413

qPCR for CNV validation

You could calculate standard deviation for the essay. Do a triplicate* (or more) of your tests and of the standard and see what kind of ...

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by canalon
Tue Nov 09, 2010 11:59 pm
Forum: Molecular Biology
Topic: qPCR for CNV validation
Replies: 5
Views: 6626
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