1. Thalia, Daniel C., Carolina N., Valentina, David C. Period 3

2. Frequency/Frequency Table  The frequency of an interval is the number of data values in that interval. In other terms:  The frequency is how many things are repeated in a range.  The frequency table is the table that shows the range and how many things were frequent in that range.

3. Histograms  The histogram is a graph that can display data from a frequency table.  There are three types of histograms.  If the bars are roughly the same height, the histogram is “Uniform”  If a vertical line can divide the histogram into two parts that are close to mirror images, then the histogram is “Symmetric”.  If the histogram has one peak that is not in the center, the histogram “Skewed”.

4. Example: What type of histogram graph is this ? UNIFORM

5. Example: What type of histogram graph is this ? SYMMETRIC

6. Example: What type of histogram graph is this ? SKEWED

7. THE END!! Classwork- Pgs 161-163 (odd) Homework- Pg 93