With rates and ratios we use numbers to represent related quantities in 3 ways part of whole: 2% saline solution, or 35 out of 50 points quantity per individual: 4 apples per person quantity per population: 7 new cases of covid-19 per 100,000 population Read the following statement of quantity and choose the relation type that best characterizes it. 148 out of 166 individuals surveyed agreed that climate change is an issue that needs to be addressed immediately. part of whole quantity per individual quantity per population