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10 cards from this deck
Empirical rule
68%
95%
99.7%
z=x−μσz = \frac{x - \mu}{\sigma}z=σx−μ
Data value lies above the mean
Data value lies below the mean
μ=0\mu = 0μ=0
σ=1\sigma = 1σ=1
2.5%
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