Before reading this guide, it may be helpful to read the guide from Module 7 (M7) about proportion and variation. Module 7 (M7) proportion and variation is concerned with direct proportion between two ...
Cancer Causes & Control, Vol. 26, No. 5, Special Issue: Breast and Cervical Cancer Early Detection Program (May 2015), pp. 689-695, 697 (8 pages) Purpose: There is substantial variation across the ...