graph showing distribution of bra cup volume across different bra

Polynomial distribution of average breast sizes. Gotta love it

graph showing distribution of bra cup volume across different bra

Bra Sizing Survey Results

Bra sizing by company, Bustyresources Wiki

BRA SIZING WITH THE HOHENSTEIN INSTITUTE Volume VS Circumference

Bra size - Wikipedia

Power and Sample Size Determination

The new bra size categories for 455 subjects

Volume changes required for change in cup size (band sizes 12-18).