1. Chapter 2 Organizing Data

2. Section 2.1 Frequency Distributions, Histograms, and Related Topics

3. Do Now Using the chart on the board, place a tally mark in two spots: – The number of letters in your first name – The number of letters in your last name – Ex: My first name is Mark, so I’d put a tally mark at “4”. My last name is Frew, so I’d put an additional tally mark at “4”.

4. Histograms (Example) http://www.cyber- wit.com/gallery_histogram.html#histogram http://www.cyber- wit.com/gallery_histogram.html#histogram

5. Copy Figure 2-8 into Notebook Mound-shaped Symmetrical Typical Uniform Skewed Left Skewed Right Bimodal

6. Basic Steps for Creation by Hand Determine the Number of Classes Determine Class Width Determine Class Boundaries Tally Find Relative Frequencies Find Midpoints Graph (X axis = # Line, Y Axis = Freq or Rel. Freq)