STP 231 Lecture Notes - Lecture 10: Energy Information Administration, Ceiling Fan, Contingency Table
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Due to decreasing revenue and economic conditions, many states have tried to legalize gambling or, in states where gambling is already legal, expand casino operations. To measure public opinion in kansas, a random sample of residents was selected and each response was categorized according to revenue preference and age. The results are given in the following contingency table. (b) suppose the person is in favor of state-owned liquor stores. (d)p(18-20 or at least 45)=p(18-20)+p(at least 45)-p(18-20 & at least 45) In a study of heart disease in male federal employees, researchers classified 356 volunteers according to their socioeconomic status (ses) and their smoking status. The three categories of ses were upper, middle, and lower. Below is the table that summarizes the data: (a) among upper class employees, approximately what percentage are current. (b) what percentage of the volunteers have never smoked and are in the lower. (c) suppose the employee is a former smoker.
