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by Santosh
(Australia)
If the mean is 25.8 and standard deviation is 4.7, what does that mean?
Answer
First please follow these links and read the information there:
Mean Average, What Is Standard Deviation?, Normal Probability Distribution and Standard Deviation Calculator.
The most likely distribution is a normal distribution. If we assume that the distribution is indeed normal, then we can understand a lot from the statistics that you provided. 25.8 is the mean or average of the data. This is a measure of the central tendency of the data. The standard deviation is a measure of the variability of the data around the mean. Plus or minus one standard deviation from the mean would be expected to include 68.3% of all the data points in the distribution. Plus or minus two standard deviations from the mean would be expected to include 96.4% of all the data points in the distribution.
