Stats4 - Julio C Lopez MAST 6201 Homework Session#4 4.21 a...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Julio C Lopez MAST 6201 4/16/2016 Homework Session #4 4.21) yes no 2009 39% 61% 1 2008 7% 93% 1 0.46 1.54 c. In part A we considered the comment event of Y in 2009 and in part B we considered the combined event of the two simple events Y & 2009. 4.25) male female total yes 238 276 514 no 304 267 571 total 542 543 1085 Depenedent from eachother 4.27) higher lower a. 73.77% higher 34 5 lower 11 11 b. 87.18% a. Pr(09|Y) 84% = .39/.46 = Pr (09 and Y)/Pr(Y) b. Pr(Y|09) 39% = .39/1= (Y and 09)/Pr(09) d. Since it's a join event, we have to consider the respondents. We're not clear that they need 3 or more clicks to remove from an email list and belong to the year 2009. a. Pr(F|NS) 49.17% b. Pr(M|ES) 46.30% c. 514/1085= 0.473732719 23.66% 238/1085 21.94%
Image of page 1

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

View Full Document Right Arrow Icon
Julio C Lopez MAST 6201 4/16/2016 Homework Session #4 5.7) p x y 0.4 100 200 0.6 200 100 5.9) X is 0.4 E(X) E(Y) a. E(P) = $80 50 100 VAR(X) Var(Y) b. portfolio risk $102.17 9000 15000 5.17) probabilitycorporate common 0.01 -200 -999 0.09 -70 -300 c. From the data it is seen that the average price for the 1st five days that is 1/3/2012 to 1/6/2012 and 1/9/2012 is 1278.79. While the average pirice of the rest of the days for this year is 1381.41. This is greater than the weekely average price. Hence, we can conclude that
Image of page 2
Image of page 3
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