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10 cards from this deck
Symmetrical, bell-shaped
All equal, at center
686868%
959595%
99.799.799.7%
μ=0\mu = 0μ=0, σ=1\sigma = 1σ=1
Z=X−μσZ = \frac{X - \mu}{\sigma}Z=σX−μ
How many SDs XXX is from mean
Probability
XXX normal with mean μ\muμ, variance σ2\sigma^2σ2
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