In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...

In the first quarter of 2013, the stock of big data has experienced sudden declines followed by sporadic bouts of enthusiasm. The volatility—a new big data “V”—continues this month and Ted Cuzzillo ...

Analysts and traders strongly adhere to the “Bitcoin is inversely correlated to the strength of the U.S. dollar index” thesis, but a closer look at the data suggests otherwise. Presently, there seems ...