1. What’s the relative frequency of girls who prefer pink? get my questions answered & be ready for the test! Test next time! Answer is 8/21 or.38 or 38% 8/21 = 38%

2. ITEMS of BUSINESS TEST next time on Bivariate Data SAGE is May 14/15 & 18/19. BE HERE. End of Term test is May 20/21.

3. Questions on Homework? then Trade-n-Grade

4. Have your homework out on your desk.

5. Try this CHALLENGE question: Is a student from Class B more likely than a student from Class C to prefer winter? Justify. NO. 2 out of 20 students in Class B prefer winter, which is 10%. 8 out of 28 students in Class C prefer winter, which is 29%.

6. BIVARIATE DATA Review for Test Per Capita Income % of people with a college degree

7. Write them down on your 3x5 card. s Chapter 16’s Big Ideas Remember It’s worth An extra 1% on your test!

8. Big Idea #1 – Know the Vocab

9. DEPENDENT vs. INDEPENDENT Doesn’t matter what goes where. Doesn’t matter what goes where. INDEPENDENT

10. ASSOCIATION vs. NO ASSOCIATION Points seem to go in one direction. Points have NO direction. y = mx + b

11. CLUSTERING vs. OUTLIERS CLUSTERING: Points seem to fall within a defined space. OUTLIERS: Points outside that defined space. They are often disregarded. Sad, but true.

12. POSITIVE vs. NEGATIVE association Both are increasing. “UPHILL” *They AGREE with each other! One increases, the other decreases. “DOWNHILL” *They OPPOSE each other! + + - +

13. LINEAR vs. NON-LINEAR Follows a STRAIGHT line. * Remember, “lines” in math are straight. Does NOT follow a straight line. y = mx + b

14. BIG IDEA #2 – Table Scatterplot #1 on Practice Test

15. BIG IDEA #2 – Table Scatterplot #2 on Practice Test

16. #3 HOW TO: draw a line of best fit Draw a Line of Best Fit for each graph. Then based on the slope & y-intercept, construct a possible equation of the line.

17. #3 HOW TO: draw a line of best fit Draw a Line of Best Fit for each graph. Then based on the slope & y-intercept, construct a possible equation of the line.

18. BIG IDEA #4 – Make Predictions Predict SAT scores in 2005. Predict air temp at 9000 ft.

19. BIG IDEA #4 – Make Predictions Predict movie lengths in 1970. Y = 1.065x - 2000

20. BIG IDEA #5 – FREQUENCY TABLES Cell phone carrier? Favorite type of food? Right-handed or left-handed? Do you have a curfew? Weight? Temperature? Money in bank account? Cost of a car?

21. BIG IDEA #5 – FREQUENCY TABLES Number of occurrences COMPARISON of occurrences to total

22. prepare for my Chapter 16 Test by making a 3x5 card and completing my Practice Test. CHAPTER 16 REVIEW

23. Do the CIRCLED PROBLEMS on the PRACTICE TEST. When you finish, you can work on the rest of the problems. PRACTICE TEST

24. Answers 2 3 4 7 8 12 14 15 17 19C 20 22 Y = 10 X 4C Y = 5C (10,50) 11 CARS FALSE, VARIABLES DROP OUT, NO SOLUTION

25. 21 possible Now, rework the ones you missed AND finish the rest of the practice test. -1 = 95% -2 = 90% -3 = 86% -4 = 81% -5 = 76% -6= 71% -7= 67% -8= 62% -9 or more: F PREDICT YOUR TEST SCORE

26. SHOW YOUR WORK Practice Test