1. Warm Up for 8/4 Make Sure to Get a Calculator 1 1 1 2 2 3 5 8 9 11 20 1. Calculate the measures of central tendency for the data set above. 2. Determine the five number summary for the data set above. 3. What is the interquartile range? You have 10 minutes to do this.

2. Review Measures of Central Tendency are:  Mean (5.72)  Median (3)  Mode (1) Five Number Summary is:  Minimum (1)  Lower Quartile (1)  Median (3)  Upper Quartile (9)  Maximum (20)  IQR (8)

3. Review of Boxplots 0 2 4 6 8 10 12 14 16 18 20

4. Outliers Outliers are elements of a data set that are significantly higher or lower than the rest of the data. 1 1 1 2 2 3 5 8 9 11 20  Are there any outliers in this data?  How do you know?

5. Warm Up for 8/5 Take Out your WS: Exploring Outliers to be checked. Without calculating…  Would the mean, median, or mode be most affected by eliminating 1,000 from the list below?  Which measure of central tendency would be least affected?  EXPLAIN. 50, 100, 75, 60, 75, 1000, 90, 100

6. Warm Up for 8/6 Katherine earned the following grades: 100, 99, 95, 95, 93, 90, 87, 85 She has one test left. What is the lowest grade she can make and still earn an A in math class? (The lowest A is 93.)

7. Warm Up for 8/7 # of Student Locker Visits Per Day 2 2 0 1 2 2 3 4 0 5 2 5 2 5 2 4 2 4 6 4 5 6 5 6 2 2 0 1 4 6 10 2  Explain why the mean does not best represent the data above.  Be sure to demonstrate your knowledge of measures of central tendency, measures of spread, and outliers.

8. Exit Slip Without calculating…  Would the mean, median, or mode be most affected by eliminating 1,000 from the list below?  Which measure of central tendency would be least affected?  EXPLAIN. 50, 100, 75, 60, 75, 1000, 90, 100