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What The Standard Deviation Tells You. A low standard deviation means that most of the numbers are close to the average while a high standard deviation means that the numbers are more spread out. What does Standard Deviation tell you about test scores. The standard deviation measures how concentrated the data are around the mean. In normal distributions a high standard deviation means that values are generally far from the mean while a low standard deviation indicates that values are clustered close to the mean.
By contrast if the standard deviation is high then theres more variability. 1 standard deviation is less unusual than 2 standard deviations. Standard Deviation is a measure which shows how much variation such as spread dispersion spread from the mean exists. What does Standard Deviation tell you about test scores. What does standard deviation tell you. The formula for standard deviation takes into account the mean of the data set by calculating the.
The SAT standard deviation is 211 points which means that most people scored within 211 points of the mean score on either side either above or below it.
What does standard deviation tell you. The standard deviation tells you how tightly your data is clustered around the mean. Standard deviation is a number used to tell how measurements for a group are spread out from the average mean or expected value. A low standard deviation means that most of the numbers are close to the average while a high standard deviation means that the numbers are more spread out. Also Know what does standard deviation measure. The standard deviation indicates a typical deviation from the mean.