Madonna 1987 American Music Awards. Madonna's "Causing a Commotion" debuts on multiple charts in the U.K. this week after the singer released a new EP centered around the tune. (Photo by Chris ...

A data set that occurs frequently consists of the values or the percentage breakdown of several categories for two time periods. A common way of plotting these data is to use a pair of pie charts.

The set launches with a 146,000-unit first week. By Kevin Rutherford Metallica’s 72 Seasons debuts atop multiple Billboard charts dated April 29, including the Top Rock & Alternative Albums survey. In ...

It's a week of chart milestones, as holiday songs hold down the top 24 spots on the Billboard Hot 100, Mariah Carey extends ...