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Stem and leaf question! basic stats

  1. Jan 24, 2008 #1
    1. The problem statement, all variables and given/known data
    When constructing a stem and leaf graph I'm confused on how to label the stem and leaf still.

    For example:
    On page 20, number 12 in section 1.2:

    The observations look like this:
    .31 .35 .36 .36 .37 .38 .40 .40 .40
    .41 .41 .42 ...

    We were told to use repeating stems so I did the following:
    3L|1
    3H|56678
    4L|000112222234
    4H|5667888
    5L|144
    5H|58
    6L|2
    6H|6678
    7L|
    7H|5

    L meaning (0,1,2,3,4)
    H meaning (5,6,7,8,9)

    Now the stem be the Tenths
    The leaf be Hundredths?
    because the stem is like .10 and the leafs are .01
    That makes sense after someone explained it to me.





    3. The attempt at a solution
    But when I was looking at number 33 on page 31
    the observations looked like this:

    389 356 359 363 375 424 etc
    now from this it looks like you would divide the steam and leaf like
    38|9
    35|69

    I have the answers and the book did it as shown above.

    What confuses me is that the book says the stem is the "ones" and the leaf is the tenths.

    Wouldn't the stem be the Hundreds
    and the leaf be the ones?
    Because
    389
    3 is in the hundreds
    8 is in the tens
    9 is in the ones
    so if they are breaking it up like 38|9
    38 is in the hundreds
    9 is in the ones correct?

    So how would they get Stem being the ones and the leaf being the tenths?
     
  2. jcsd
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