The mean absolute deviation for one number is always zero.
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Standard Deviation tells you how spread out the set of scores are with respects to the mean. It measures the variability of the data. A small standard deviation implies that the data is close to the mean/average (+ or - a small range); the larger the standard deviation the more dispersed the data is from the mean.
The mean absolute deviation is 5
it tells you
how many numbers your data is away from your mean
The standard deviation.