1. Chapter Review
TRASHKETBALL!!!!!!

2. You want to make a stem-and-leaf of the data values 48, 44, 36, 31, 25.
What numbers would you use as the stems?
a) 2, 3, and 4 or
b) 8, 4, 6, 1, and 5

3. What are two ways we can represent 4 | 6 from a stem and leaf plot?46
4.6
4 | 6 = _______ | 6 = ______

4. Make a stem-and-leaf plot with the given data.
10, 12, 15, 14, 20, 22, 27, 31, 36
Key
1| 0 = 10 1 2 3
0 2 7
1 6

5. Upper Extreme is the highest number!
Which value is the upper extreme for the data?
19, 14, 25, 12 25
_______________
Upper Extreme is the highest number!

6. Lower extreme is the lowest number!
Which value is the lower extreme for the data?
13, 6, 27, 9 6
_____________
Lower extreme is the lowest number!

7. How do you find the inter quartile range?
Upper Quartile - Lower Quartile
_________________

8. Which city has the bigger range?
40=
27=
72 -30
65-38
A or B

9. What percent is lower than 71?
75%
________

10. What is the upper quartile and lower quartile and interquartile range?71 31 40
UQ = ____ LQ = ____ IQR = ____

11. Categorical __________________
Tell whether the data are numerical or categorical.
A study determined the preferred method of transportation by college students, such as car, airplane, train, or bus.
Categorical
__________________

12. numerical _______________
Tell whether the data are numerical or categorical.
A study was done to find the wingspans (in centimeters) of captured bald eagles.
numerical
_______________

13. Circle Graph!!! Favorite Type of Movie Type Percent Drama 16% Comedy
The table shows the results of a survey that asked students to name their favorite type of movie. Which is the best display to use to display the data?
Favorite Type of Movie
Type
Percent
Drama
16%
Comedy
45%
Action
28%
Sci-Fi 8%
Other 3%
Circle Graph!!!

14. A school newspaper is conducting a survey to predict who will win the next school election.
Identify the sampling method.
If the school hung posters and announced if anyone wanted to vote to come to the cafeteria.
A. Self-selected B. Stratified C. Random A
_______

15. Is this question biased?
Are you willing to pay higher taxes so that the city can build a new shopping mall, even though the school needs a new building?
YES or NO
Biased -
unfairly prejudiced for or against someone or something.

16. Is this question biased?
Don′t you agree that planting more shade trees will make our
beautiful downtown area even better?
Yes
___________

17. What happens when you have two medians left and you are finding your upper quartile and lower quartile?
Include the two medians in the UQ and LQ or disregard them?
________________________
When there are two medians left, you use them to find the UQ and LQ. When there is only one median left, you disregard it.

18. Make sure you have the correct amount of BINS in each row!!!!!!!!!!!

19. What percent of songs were played under 11 weeks?31
total songs 9 __
x 100 =
29 %
3 + 6 = 9 31

20. Finding the average of histograms!
483 divided by 31
= about 16
Take the middle of each interval, add their quantity and divide by the total number =
483