ICT Role in 21st Century Education & its Challenges.pptx
Histograms Made Easy
1. B Heard Histograms Made EasyStatistics For Decision Making Not to be used, posted, etc. without my expressed permission. B Heard
2. Before we get started, go to http://highered.mcgraw-hill.com/sites/0070620164/student_view0/excel_templates.html And download/save the “Histogram” File to your computer Histograms Made Easy Not to be used, posted, etc. without my expressed permission. B Heard
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4. The first thing you need to do is go to the Review Tab and click “Unprotect Sheet” Not to be used, posted, etc. without my expressed permission. B Heard
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6. Histograms Made Easy You can see the column only contains my 30 data points now. I copied my data and then used “Paste Special” to paste only the “Values”, then I cleared the data left over from the template’s original analysis. Not to be used, posted, etc. without my expressed permission. B Heard
9. Let’s now divide 149 by 9 to get 149/9 = 16.5, we are going to round up to 17 for starters and see how that works out for us. You can always “tweak” this a little if needed.
10. Let’s now take a look at the template again.Not to be used, posted, etc. without my expressed permission. B Heard
11. Keys to the Central Limit Theorem Notice I chose 94 for my “Start” because it’s one below my minimum. I entered my “Interval Width” as 17 as described on the previous chart. I chose an “End” value of 246, one above my maximum. Notice the Bin Labels are a little scrambled, don’t worry about that right now. Not to be used, posted, etc. without my expressed permission. B Heard
12. Histograms Made Easy This is what we have right now. It is a good “sketch” of a histogram. Let’s look at fixing the Bin Labels. Not to be used, posted, etc. without my expressed permission. B Heard
13. No Need to Worry! Just grab the graph in bottom right hand corner and pull to make it larger. (YOU CAN’T DO THIS UNLESS YOU HAVE UNPROTECTED THE SHEET) Histograms Made Easy
14. Voila! It is beautiful, you can just right click, copy, and paste wherever you need to! Histograms Made Easy
15. Histograms Made Easy Hopefully this will help you in creating Histograms. Play around with the template, you can do some interesting things. We would love to hear if it helps you! Visit us on Facebook at www.facebook.com/statcave Not to be used, posted, etc. without my expressed permission. B Heard