Download Chapter 4 Weekly Questions: Total Points = 4 Last summer, an

Chapter 4 Weekly Questions:
Total Points = 4
Last summer, an insurance company researcher conducted a survey on the number of car thefts
in a large city for a period of 30 days. The stem-and-leaf display below shows the number of car
thefts for the 30-day period. Notice the range of car thefts is from 50 — 77.
Note: It is a standard statistical technique is to repeat the stems so that only leaves from (0 - 4)
are included in a row, likewise for leaves (5 - 9). This technique is used to reduce the number of
values in a row and to facilitate the reading of the values relatively quickly.
5
5
6
6
7
7
0
5
2
5
2
5
1
5
2
5
3
7
1
6
3
6
3
2 2 2 3 4
7 7 8 9
3 3 4
7
[0.25] 1. Using our number system in the context of this problem, what is the place value for the
stem?
[0.25] 2. Using our number system in the context of this problem, what is the place value for the
leaves?
[0.5] 3. In context, write an interpretation of row containing 7 (5 7).
[1] 4a. State the mean and median for this distribution ( to one decimal place). 4b. Interpret the
values for the mean and median, in context.
[1] 5a. State the standard deviation (to one decimal place) and the show your work for the IQR
5b. Interpret the meaning of the IQR, in context.
[1] 4. Describe this stem-and leaf display. Be sure that your description includes the appropriate
shape, center and spread and in context.