The risk for skin damage and skin cancer is related to the number of sunburns a person experiences throughout his or her lifetime. The following physical characteristics also increase the risk for sunburn, skin damage, and skin cancer:
Retention rates are a measure of academic progression of a group of students from one. period of time to the next. Graduation rates are a measure of the success of those students. in attaining their academic goals.
1. attrition rate-the rate of shrinkage in size or number. rate of attrition. rate-a magnitude or frequency relative to a time unit; they traveled at a rate of 55 miles per hour; the rate of change was faster than expected.. attrition rate-the rate of shrinkage in size or number. rate of attrition. rate-a magnitude or frequency relative to a time unit; they traveled at a rate of 55 miles per hour; the rate of change was faster than expected.