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10 cards from this deck
Tests how well a distribution fits a data set
Never required, even when ν=1\nu = 1ν=1
(O−E)2E\frac{(O - E)^2}{E}E(O−E)2
ν=n−1\nu = n - 1ν=n−1
Lose one degree of freedom per parameter estimated
Do not reject H0H_0H0
Reject H0H_0H0
All expectations must be ≥5\geq 5≥5
Model fits the data (not data fits the model)
p=xˉnp = \frac{\bar{x}}{n}p=nxˉ
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