Stats+Medic+-+AP+Stats+-+Lesson+1.1.docx - Name Laasya...

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Name: Laasya Ananthu Hour: Date: Lesson 1.1 – Analyzing Categorical DataCheck Your Understanding: 1. Students at a local high school were asked which gaming system they preferred: the Playstation 3, the Xbox 360 or neither. The graph shown at right shows the results. Explain why the graph may be misleading.It can be misleading because it doesn’t show us how many students were asked, what scale it is being measured off of, or if the students were picked at random or were chosen from a particularclass.2.An article in the Journal of the American Medical Association reports the results of a study designed to see if the herb St. John’s wort is effective in treating moderately severe cases of depression. The study involved 338 patients who were being treatedfor major depression. The subjects were randomly assigned to receive one of three treatments: St. John’s wort, Zoloft (a prescription drug), or placebo (an inactive treatment) for an 8-week period. The two way table summarizes the data from the experiment.

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