Mac or PC? A recent census at a major university revealed that 40% of its students mainly used Macintosh computers (Macs). The rest mainly used PCs. At the time of the census, 67% of the schools students were undergraduates. The rest were graduate students. In the census, 23% of respondents were graduate students who said that they used PCs as their main computers. Suppose we select a student at random from among those who were part of the census. (a) Make a two-way table for this chance process. (b) Construct a Venn diagram to represent this setting. (c) Consider the event that the randomly selected student is a graduate student and uses a Mac. Write this event in symbolic form based on your Venn diagram in part (b). (d) Find the probability of the event described in part (c). Explain your method.

Statistics 130M Notes January 10, 2017 class- January 12, 2017 class January 10,2017 class Class Canceled on the 10 due to snow! January 10, 2017 Notes Syllabus notes Exams and Quizzes - Multiple choice and in class Calculator may be used in class, exams, and quizzes Exams formal study sheet with hand written notes on a 8.5” x11” paper January 12, 2017 Mr. Russell ...