1. Lesson 8.1.2

5. 1 2 3 5 4 6 7 8 9 10

8. 10 20 30
100 50 80 60 70 90 40
10-19
30-39

9. Feb
1-28
March
1-31
April
1-30
May
1-31

10. 10 20 30
100 50 80 60 70 90 40
Feb
1-28
March
1-31
May
April
1-30

14. Q2 M

16. Males
Center
Spread

17. Females
Center
Spread

18. Males Females Median = 140 Median = 125 IQR = 64 Range = 350 IQR = 90
Center
Median = 140
Median = 125
Spread
IQR = 64
Range = 350
IQR = 90
Range = 280
Males
Females
Center
Median = 140
Median = 125
Spread
IQR = 64
Range = 350
IQR = 90
Range = 280
Males
Females
Center
Median = 140
Median = 125
Spread
IQR = 64
Range = 350
IQR = 90
Range = 280
Males
Females
Center
Median = 140
Median = 125
Spread
IQR = 64
Range = 350
IQR = 90
Range = 280

19. The following box-and-whiskers plot represents the length of time it takes for the males and females in a class to complete a maze.
What is the range for each set of data?  
For each set of data, what is the median? 
What is the first quartile? 
The third quartile? 
Which gender is better at completing the maze?
This table shows the marks (out of 50) obtained in some tests by two pupils:
Find the range of each student.
Find the mean of each student.
Which pupil scored better on the given tests?