Actuarium

Formula sheets

Every formula on the syllabus, rendered natively, with the traps examiners set for each. Print one per exam and keep it by your desk.

ATPA — Advanced Topics in Predictive Analytics

SOA

Silhouette   si=bi−aimax⁡(ai,bi)\;s_i=\dfrac{b_i-a_i}{\max(a_i,b_i)}; ARIMA(p,d,q)(p,d,q): ϕ(B)(1−B)dyt=θ(B)εt\phi(B)(1-B)^dy_t=\theta(B)\varepsilon_t.

Traps to remember

  • Using k-means on unscaled features.

  • Fitting ARIMA to non-stationary series without differencing.

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