Can you explain what standard deviation is?
Sure! Standard deviation is a measure of the amount of variation or dispersion in a set of values.
Why is standard deviation important in statistics?
It's important because it helps us understand how spread out the data points are from the mean, indicating consistency.
How do you calculate standard deviation?
To calculate it, you find the square root of the variance, which is the average of the squared differences from the mean.
Can you give me an example of calculating standard deviation?
Of course! If you have the data set {2, 4, 4, 4, 5, 5, 7, 9}, the mean is 5, and the standard deviation is about 2.
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