Consider an experiment in which adult laboratory mice were fed one of three diets: high fat, low fat, and a control diet. The mice were weighed, received these diets for 2 weeks, and then were weighed again. The table below shows the results of the experiment.
Diet Gained weight Lost weight
High Fat 79 21
Low Fat 30 69
Control 70 30
What proportion of mice in the experiment gained weight?
Group of answer choices
0.40
0.60
0.80
0.90
