Box and Whisker WS
Name ________________________________
Refer to the box & whisker plot below which shows the test results of a math class.
Test Scores (as %) for 6th Period
38
72
88
________
1. What was the highest score on the test?
________
2. What percent of the class scored above a 72?
________
3. What was the median score on the test?
________
4. What percent of the class scored between 88 & 96?
96
102
5. Do you think that this test was too hard for the students? Explain.
__________________________________________________________________________________________
Refer to the box & whisker graph below that shows how much time was spent per night on homework for
sophomore class at a certain high school during September.
Average Minutes Per Night Spent On Homework
0
20
48
60
190
________
6. What percent of the sophomores spend more than 60 minutes on homework per night?
________
7. Are there any sophomores who do not do homework?
________
8. What percent of the sophomores spend less than 20 minutes per night on homework?
9. Calculate the values for each question below using the box and whisker plot.
Homework Minutes per Night
LOW:______________ HIGH:_________
IQR:______________
0
20
48
60
190
Percentage between 20-190:____________
Homework and TV minutes per night by the sophomore class at North High School.
Homework
TV Time
0
15
60
110
225
Using the box & whisker plots above, determine if each statement is TRUE or FALSE.
________
10. Some sophomores didn’t watch TV that month.
________
11. The TV box & whisker plot contains more data than the homework plot.
________
12. 25% of the sophomores spend between 48 & 60 minutes per night on homework.
________
13. Fewer students do homework for 48 minutes or less than watch TV for more than one
hour.
_________
14. The median number of minutes spent on homework is greater than the median number of
minutes spent watching TV.
________
15. Twice as many sophomores watch TV for more than 1 hour than do homework
for more than 1 hour.
16. Suppose that one family kept track of how many DVDs they rented each month for a two year
period. The numbers for each month are shown in the table below. Make a box & whisker
graph from this data.
J
F
M
3 5 2
A
M
8 1
J
J
A
S
O
N
D
J
F
M
A
M
J
J
A
S
O
N
D
5 0 3 6 4 9 15 3 6 4 1 10 3 8 7 2 9 0 11
Low:_________ Q1:________ Q2:__________ Q3:__________ High: _________Outliers:__________
17.