The last time bond yields rose above 3% – all the way back in the 1950s, as the chart shows – the correlation went positive. Stocks were rising while bonds were selling off, sending yields ...

Journalist Alberto Cairo talked the biases that people have when interpreting charts. He discussed the concepts of confirmation bias and correlation.

The breakdown of the correlation between a strengthening dollar and falling stocks for the first time since January 2009 indicates investors may be putting the global financial crisis behind them.

We'll remember that the US Dollar used to accompany the S&P 500 in its rallies. Americans won on both ends of that tandem. When I look at the chart above, I want to laugh at the idea of a stock rally.

Video Clip: Correlation and Reading Charts. Description. Journalist Alberto Cairo talked the biases that people have when interpreting charts.