Question

MEDAL!!!!!!!!!!!!


Which is an example of an experiment?

A. Collecting the cholesterol readings of a group of individuals of a certain age group in a small town

B. Calling a sample of registered voters before an election to find what issues concern them most

C. Testing the effectiveness of a new hair product by allowing one group to use it and comparing results against a group that doesn't use it

D. Finding out the number of monthly burglaries of a residential neighborhood for a statistical study for the police