1. Questions?? Examples: –Exercise set D #9 p. 71 –Exercise set A #9 p. 61 –Exercise set E #8 p. 73

2. Ch. 5 Normal approximation Comparing histograms to the normal curve virtualatdp.berkeley.edu:8081/2649/images/1

3. Standardized Units Converting to standardized units: 1.Find the deviation from the mean 2.Calculate the number of SD’s the deviation is Example: The average age of the laid off salaried employees is 48.6 years and the standard deviation is 12.9 years. Convert 55 years to standardized units.

4. Activity: Hand Span Get into groups of 5-6 people Each group should complete one handout and hand it in when finished

5. Area Under the Normal Curve Area between -1 & 1 Area between -2 & 2 Area between 0 & 1 Area between 0 & 2 Area between -2 & 0 Area between 1 & 2

6. Area between -1.5 & 1.5 Area between 0 & 1.5 Area between 1 & 1.5 Example: Exercise set B #1 p. 84 & draw pictures