Problem: What factors determine conversion from a trial online English class into a purchase?
Stack: pandas, numpy, statsmodels, matplotlib, seaborn
Keywords: conversion, A/B tests, product analysis, online education
Link: online_ed_conversion
Problem: How transport infrastructure might affect economic growth?
Stack: sklearn, factor_analyzer, pandas, numpy, matplotlib, seaborn
Keywords: PCA, k-means, linear regression, international economy, transportation
Link: transport_vs_economy
Problem: Among three futures traded on a stock exchange, which one is the follower, and which - the leader?
Stack: pandas, numpy, matplotlib, seaborn
Keywords: correlation, data visualization, time series, futures
Link: index_lag_analysis