Friday, June 19, 2009

Constructing Samples

Please post any questions or comments that are specifically about this subsection as a comment to this post.


  1. Hi,

    I got one question in this chapter.
    Please refer to the following question:
    Give the sample 14,14,5,5,-19,5, add one more sample value that will not change the mode nor the range.

    According to the solution, the correct answer is -14.
    I understand that the mode is 5.
    And the range should be between 14 and -19.
    I just wondering that except 14, every number between 14 and -19 could be the correct answer to be the added value in this set.

    So I was a little confused about the answer.
    Could you give me some instruction about this problem?

    Thank you very much,

  2. I believe that given the way the question is written they only want you to choose from values already in the sample. That said, I don't understand why 5 and -19 aren't both answers. I'm out of the office now. Will look when I return to see if I can give more info.