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10 cards from this deck
Normal distribution
68%
95%
99.7%
16%
2.5%
z=x−xˉsz = \frac{x - \bar{x}}{s}z=sx−xˉ
x=xˉ+z×sx = \bar{x} + z \times sx=xˉ+z×s
Above the mean
Below the mean
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