Summary Statistics

1. Mode (modal class), Median and Mean ... know advantages and disadvantages of each

2. Sigma notation

3.  Mean of frequency distribution tables

4. Mean of grouped data

5. Quartiles and percentiles

6.  Box-Whisker plot

7.  Variance and Standard Deviation ... measure the spread of the data

Problems to help your understanding. 

1. From the data you collected from the previous night, find the modal class, median, mean, and standard deviation. 

2.  page 40: 13. pg 43: 8. pg 46: 8, 9.  pg 54: 5, 9. pg 64: 4, 11.

3.  Read this article and be prepared to discuss on Monday.