1. MIA U2D8 Warmup: 1, 15, 15, 16, 21, 22, 24, 35 Determine the following: A)Mean B)Minimum C)Quartile 1 (Q1) D)Median E)Quartile 3 (Q3) F) Maximum G)Interquartile Range (IQR) H)Outlier Fences? I) Outliers? A)18.625 B)1 C)15 D)18.5 E)23 F)35 G) 8 H)3, 35 I)1

2. Homework Solutions: Document Camera

3. Unit 2 QUIZ 2 You may use a calculator! REMINDER – Tomorrow A Lunch is the last chance to complete test corrections!

4. Common Core Math I Unit 2: One-Variable Statistics Comparing Data Sets

5. Objective Students will be able to… Interpret data based on the shape of a data distribution Choose the appropriate measures of center (mean or median) and spread (standard deviation or interquartile range) to describe the distribution. Interpret summary statistics for center and spread in the context of the data.

6. Describing Data Two ways to describe data: Graphically Dot plot Histogram – Boxplot Numerically – Measures of Center: Median and Mean – Measures of Spread

7. Measures of Spread Range Interquartile Range (IQR) Standard Deviation How much do values typically vary from the center?

8. Comparing Two Sets of Data Do boys have better balance than girls?

9. Balancing on One Foot Follow this procedure: Comfortably balance on your dominant foot before closing your eyes. Timing starts when you close your eyes and say “start”. Time ends when you: – Put your other foot down – Open your eyes – Touch an object for balance with hand or foot – Balance for more than 3 minutes Record your time. Collect your group’s data on a post-it note and bring to the front – be sure to list which values are male and which are female. Group Roles: timer, recorder, balancer (rotate roles until each person has had a chance to balance on one foot)

10. Side-by-Side Boxplots Using technology, create side-by-side boxplots.

11. Creating Histograms Using technology, create a histogram of each set of data. Make sure you use the same scale for each!

12. Comparing The Data Sets Write a description comparing the two data sets in context. Address shape, center, spread, and outliers. Answer the question, “Who balances better?” 1. Which representation gives you more information? 2. Which numerical measures best describe the data sets? Explain.

13. CW: U2D8 Comparing Types of Peanut Butter

14. Comparing Types of Peanut Butter Statistic Natural Peanut Butter Regular Peanut Butter Min 3411 Q1Q1 5731 M 61.540 Q3Q3 6954 Max 8983 IQR 1223 mean61.242.7 standard deviation13.618.8 Natural Regular Natural Peanut Butter Outliers: 34, 89

15. HW: U2D8 HMWK Snowboards

16. HW: U2D7 Boxplots and Outliers