Flushed and sweating, 31-year-old Annisa Enggracia Fidel runs back and forth to defend her fort from invaders -- hundreds of fellow adults all beating the blues by playing a nostalgic Indonesian ...

Store loyalty programs used to be simple: You’d get a punch card at a local sub shop, buy eight sandwiches and get your ninth for free. It felt like a transparent “thank you” for your business. But ...

Are two sets of data genuinely different, or is it because of randomness? This question, known as the two-sample testing problem, becomes notoriously difficult in modern datasets, because they are ...