- whether the situation is an example of an experiment or an observational study. explain. a nutritionist wants to know if taking vitamins keeps people from getting colds. she gives 100 people a vitamin supplement for 2 months, and compares the results to 100 people who do not take vitamins. 3 1 a) this is an experiment. the nutritionist is applying a treatment (taking vitamins) instead of simply gathering data. b) this is an observational study. the nutritionist is applying a treatment (taking vitamins) instead of simply gathering data. c) this is an observational study. the nutritionist gathers data instead of applying a treatment. 4 d) this is an experiment. the nutritionist gathers data instead of applying a treatment. Get the answer
Category: literature | Author: Selma Yafa