The top music genres according to SoundScan for 2012 are Rock, Alternative, R&B, and Country. These and other music genres along with the number of albums sold in each (in millions) are shown here:

Genre ……………………..  Albums Sold

Rock ……………………….         102.5

Alternative …………………….   52.2

R&B ……………………….           49.7

Country ……………………….     44.6

Metal ………………………..        31.9

Rap ……………………….            24.2

Christian/Gospel ……………  22.9

Soundtrack ……………………  12.3

a. Construct a pie chart for these data displaying the percentage of the whole that each of these genres  represents.

b. Construct a bar chart for these data.

c. Compare and contrast the displays of the pie chart and the bar chart.