EconReview2 - Question#1 Which of the following are...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Question #1 Which of the following are measures of the linear relationship between two variables? ( Hint: 2 correct answers ) The covariance The standard deviation The coefficient of correlation The variance Generally speaking, if two variables are unrelated, the covariance will be ( Hint: 1 correct answer ): a larger negative number than if they were related closer to 1 than if they were related a smaller positive number than if they were related a smaller positive or smaller negative number than if they were related a larger number than if they were related a positive number close to zero Item 1: You made all of the correct selections. Item 2: You made all of the correct selections. You received a raw score of 100% on this question. Question #2 According to a recent study, kids aged 12 to 17 watched an average of 3 hours of television per day. Suppose that the standard deviation is 1 hour and that the distribution of the time watching television has a bell-shaped distribution. Answer the following questions relying only on the Empirical Rule. What percentage of kids aged 12 to 17 watches television between 2 and 3 hours per day? 34% What percentage of kids aged 12 to 17 watches television between 1 and 4 hours per day? 81.5% What percentage of kids aged 12 to 17 watches television more than 4 hours per day? 16% You received a raw score of 100% on this question.
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
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