Pstudent smokesneither parent smokes 188 1356 1386

Info icon This preview shows pages 2–4. Sign up to view the full content.

View Full Document Right Arrow Icon
P(student smokes|neither parent smokes) = 188 1356 =.1386 P(student smokes|one parent smokes) = 416 2239 = .186 2
Image of page 2

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
P(student smokes|both parents smoke)= 400 1780 =.225 P(student smokes) = .187 There is an association between students and parents smoking. If both parents smoke, there is an increased chance the student smokes. If neither parent smokes there is a decreased chance the student smokes. 722 randomly selected students in a business school were asked what their major was. Half the students were males and half were females . Females* Major Males* Major Category Accounting Admin Econ Finance Pie Chart of Females, Males vs Major 11. The pie charts shown above represent what distribution? a. They represent the marginal distribution of gender b. They represent the marginal distribution of major c. They represent the conditional distribution of gender given major. d. They represent the conditional distribution of major given gender. 12. There appears to be an association between gender and major. Explain why, using info from the above pie charts. (Note percentages are not given; just describe them as best you can; this happens sometimes in the ‘real world’.) Females have more administrative majors than males; males have more Accounting majors than females. 3
Image of page 3
Mike and Matt are on a baseball team. They keep track of their batting statistics for two seasons. They count the number of times they got a hit, and the number of times they were at bat (that means the number of times they attempted to make a hit.) The
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern