CFA® Exam Formulas App

Using this app, you can learn your level 1 & level 2 CFA exam formulas anytime and anywhere. Now – the Formulas App is in its trial mode – which means only a few formulas get generated. To gain unlimited access to our Free Formulas App you need to set up your account.

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Estimated Variance of Prediction Error
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\(s^{2}_{f} = SEE^{2}\times [1 + \frac{1}{n} + \frac{(X_f - \overline{X})^{2}}{(n-1)\times s^{2}_{x}}]=\\=SEE^{2}\times [1 + \frac{1}{n} + \frac{(X_f - \overline{X})^{2}}{\Sigma^{n}_{i=1} (X_{i} - \bar{Y}_{i})^{2}}]\)

  • \(s^{2}_{f}\) - estimated variance of the prediction error
  • \(SEE^{2}\) - squared standard error of estimate
  • \(n\) - number of observations
  • \(X_i\) - i-th observation of the independent variable
  • \(X_f\) - forecasted value of the independent variable
  • \(\overline{X}\) - mean of the independent variable
  • \(s^{2}_{X}\) - variance of the independent variable
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The app contains all formulas for the level 1 & level 2 CFA exams

Formulas can be filtered by topics, readings and importance

Formulas are randomly generated each time you click the "Apply" button

After you learn a given formula you can mark it as memorized

You can add personal notes to each formula

The app is mobile-friendly, so you can use it on the go

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NOTE: If you are not signed in, the app is in its trial mode, which means only a few formulas get generated. With your free account, you get access to the full mode of the Formulas App & your free Study Plan. Enjoy studying :)