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Practical, exam-grade articles on financial calculation — TVM, bonds, capital budgeting, statistics and BA II Plus technique, bilingual.
CFA Preparation
Statistics for finance: mean, standard deviation and regression on the BA II Plus
One-variable and two-variable statistics done right: sample versus population dispersion, correlation, R², and forecasting in both directions with a verified worked example.
8 min readUpdated November 3, 2025
CFA Preparation
BA II Plus technique for CFA Level I quantitative methods
Exam-day workflow: TVM sign discipline, NPV/IRR keystrokes, statistics and regression worksheets, ICONV traps and the settings that quietly ruin otherwise perfect answers.
10 min readUpdated October 20, 2025