Lecture 7 Flashcards by grace dobson | Brainscape

Q

Chi sqaured measures

A

how good is our pdf model in the first place

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Q

Chi sqaured for definite outcomes formula

A

χ2 = n Σ i=1 (Oi-Ei)^2 / Ei

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Q

Degrees of freedom formula

A

r = N - k - 1

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Q

The chi squared pdf

A

pv(χ2) = p0 x (χ2)^(v/2 -1) exp[-χ2/2]

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Q

Chi sqaured for measured data formula

A

χ2 = n Σ i=1 (xi-x̄)^2 / σi^2

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