Advanced Math Topics

1. Advanced Math Topics Chapter 2 Review Olympics

2. Terms to Know A group that represents the entire population fairly Random Samples- Frequency Distribution- Ordering data into intervals and their corresponding freq. Interval width- Subtract the smallest value from the largest & divide by the # of intervals Relative Frequency- Frequency of that interval divided by the total frequency A bar graph where the bars are touching(horizontal=intervals vert. = freq. Histogram- Normal Distribution- Bell shaped curve where most data points are centered Cumulative Frequency- The freq. of that interval plus the freq. of all lesser intervals Cumulative Frequency Polygon- Line graph that answers the question “How many are less than or equal to a certain number?” Relative frequency of that category x 360 Central angle of a pie chart- Truncated graphs- Misleading because of the inconsistent scale Stem-and-Leaf Plot- Line up the stems, find a stem for each leaf, be organized Index Number- (Given year/base year) x 100

3. Take a look at the back wall to see your row #.

4. World Population • Find the relative frequency of a) Asia and • b) Antarctica to the nearest %.

5. World Population 2) If you were making a pie chart of the data, find the central angle, to the nearest degree, of a) North America and b) Australia.

6. Number of Rooms Rented Daily at the Courtyard by Marriott 3) Find the cumulative frequency of the interval a) 70-79 and the interval b) 90-99.

7. Number of Rooms Rented Daily at the Courtyard by Marriott 4) Find the relative frequency of the interval 80-99.

8. Cost of a Car Stereo Installation 5) Fill in the missing frequencies.

9. Average Cost of a Six Month Car Insurance Plan from Progressive 6) Find the index number for a) 2001 and b) 2004 using 1999 as your base year to the nearest hundredth.

10. Average Cost of a Six Month Car Insurance Plan from Progressive 7) Find the % of change from 2001 to 2004 to the nearest hundredth of a percent.

11. Average Cost of a Six Month Car Insurance Plan from Progressive 8) You are planning to create a freq. distribution using 12 intervals. List out the intervals.

12. Cell Phone & Home Phone Providers 9) You are constructing a pie chart of the data. What would the central angle be, to the nearest degree, for both AT&T Home and Cell Phone users combined?

13. Odd rows trade with the group behind you, even rows trade with the group in front of you.

14. World Population • Find the relative frequency of a) Asia and • b) Antarctica to the nearest %. a) 56% and b) 0%

15. World Population 2) If you were making a pie chart of the data, find the central angle, to the nearest degree, of a) North America and b) Australia. a) 32 degrees and b) 20 degrees

16. Number of Rooms Rented Daily at the Courtyard by Marriott 3) Find the cumulative frequency of the interval a) 70-79 and the interval b) 90-99. a) 38 and b) 85

17. Number of Rooms Rented Daily at the Courtyard by Marriott 4) Find the relative frequency of the interval 80-99. 47/98 = .48 = 48%

18. Cost of a Car Stereo Installation 5) Fill in the missing frequencies. 4 4 9 14 9 10

19. Average Cost of a Six Month Car Insurance Plan from Progressive 6) Find the index number for a) 2001 and b) 2004 using 1999 as your base year to the nearest hundredth. a) 113.49 and b) 122.87

20. Average Cost of a Six Month Car Insurance Plan from Progressive 7) Find the % of change from 2001 to 2004 to the nearest hundredth of a percent. 8.27% increase

21. Average Cost of a Six Month Car Insurance Plan from Progressive 8) You are planning to create a freq. distribution using 12 intervals. List out the intervals. 14-17 18-21 22-25 26-29 30-33 34-37 38-41 42-45 46-49 50-53 54-57 58-61

22. Cell Phone & Home Phone Providers 9) You are constructing a pie chart of the data. What would the central angle be, to the nearest degree, for both AT&T Home and Cell Phone users combined? 190 degrees

23. Tiebreaker: Favorite Sodas at SRVHS The first non-tied student to show me (not yell) the answer will also get reduced HW. If the central angle of a pie chart for the Coke piece is exactly 102.5 degrees, how many people like Dr. Pepper as their favorite soda? 102.5/360 = 820/x x = 2880 people at the school 2880 – 820 – 660 – 500 – 410 = 490 students love Dr. P!!

24. HW • P. 90 #3-6, 8, 10 for #5 create a frequency histogram only Bring graph paper and a calc. for the test tomorrow Winning Players: do only #4, 6, and 8 FYI: A lot of people forgot to do #14b on Firday’s Assignment, Cum. Freq. Histo.