Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to make a histogram

  1. Jul 31, 2010 #1
    I am trying to help my brother on his Stats homework, but for the life of me, I can't rememeber how to make a histogram. He has the answers to compare to, but is unsure how they got to them, as am I. It's been so long since I have done this stuff, I need a little refresher. Google is not helping so much like it normally does, lol.
     
  2. jcsd
  3. Jul 31, 2010 #2
    Re: Histogram...

    it's just a frequency chart. divide the x-axis into equally-spaced segments, and place a bar there. height of bar is number of data points that fall in that interval.
     
  4. Jul 31, 2010 #3
    Re: Histogram...

    First entry returned bu Google:

    http://en.wikipedia.org/wiki/Histogram

    self explanatory
     
  5. Jul 31, 2010 #4

    cronxeh

    User Avatar
    Gold Member

    Re: Histogram...

    1. Determine how many bins you want to implement, for example, 10 bins: 1-10, 11-20, 21-30, 31-40, 41-50, 51-60, 61-70, 71-80, 81-90, 91-100.

    2. Create a graph y vs x. y will be the number of times a number appears that belongs in either one of the bins. x will be the bin number starting with lowest number. (x values: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91)

    3. Count and fill out the graph.
     
  6. Aug 1, 2010 #5
    Re: Histogram...

    Thanks everyone :) I think I understand it now.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: How to make a histogram
  1. How to make coffee (Replies: 39)

Loading...