Most important distribution
Bell-shaped
Unimodal, with the peak at the center (mean)
Mean=Median=Mode
Symmetric around the center (mean)
Asymptotic tails
Area under the curve is 1
Positive for all x
Shape is dependent on mean, $\mu$ , and standard deviation, $\sigma$
68% of the observations are within 1 standard deviation of the mean
95% of the observations are within 2 standard deviations of the mean
99.9% of the observations are within 3 standard deviations of the mean
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