{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Statistics Homework Solutions 2

Statistics Homework Solutions 2 - 2 CHAPTER 1 Section 1.2 1...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
2 CHAPTER 1 Section 1.2 1. False 3. No. In the sample 1, 2, 4 the mean is 7/3, which does not appear at all. 5. The sample size can be any odd number. 7. Yes. If all the numbers in the list are the same, the standard deviation will equal 0. 9. The mean and standard deviation both increase by 5%. 11. The total number of points scored in the class of 30 students is 30 72 2160. The total number of points scored in the class of 40 students is 40 79 3160. The total number of points scored in both classes combined is 2160 3160 5320. There are 30 40 70 students in both classes combined. Therefore the mean score for the two classes combined is 5320 70 76. 13. (a) All would be multiplied by 2.54. (b) Not exactly the same, because the measurements would be a little different the second time.
Image of page 1
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