olivia class voted on whether or not do science fair project in groups out of 16,8 were favar in working in groups what percentage of votes were in favor of working in groups

50%

Step-by-step explanation:

There are 16 students total and 8 of them want to work in groups. this means that exactly half the class wants to work in groups. since 50 is half of 100, this means 50% of the class wants to work in groups.