What are the differences among an experiment, a study, and a survey? 1. in an observational study, randomization of subjects a. occurs b. does not occur 2. a survey a. poses no interference on subjects b. makes inferences about a population 3. in an experiment, to discern differences in a response variable. a. treatment is imposed b. inferences are made c. randomization does not occur

Step-by-step explanation:

One

Randomization not only occurs, but the person conducting the experiment has no idea who is receiving what. If there are two groups, there are members in each group that receive a drug and others who do not.

Two

poses no interference on the subjects. The information is obtained. It is pretty objective. When the survey is complete so is the person interviewed by those conducting the survey.

Three

Treatment is imposed at least on 1/2 the participants.

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8