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Classify the variable as qualitative or quantitative. the number of calls received at a companY's help desk 0 quantitative qualitative Determine whether the study depicts an observational study or an experiment. A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 15 people to a treatment group and 15 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients' symptoms are evaluated. 0 experiment 0 observational study Which of the following is not true of statistics? 0 A. Statistics is used to draw conclusions using data. 0 B. Statistics can be used to organize and analyze information. 0 C. Statistics involves collecting and summarizing data. 0 D. Statistics is used to answer questions with 100% certainty