Data Analysis Reality Check "If A and B move together, does A cause B?" This question costs companies millions. I learned this the hard way analyzing real estate investments in Egypt. The Problem: Last year, I found something interesting: Real estate prices in Alexandria correlate +0.63 with USD strength. When the dollar goes up, property prices go up. Perfectly synchronized. My first thought? "USD strength drives real estate prices higher." Wrong. That's the correlation/caus
