Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
Choose the most appropriate measures to describe the center and the
variation. Find the measures you chose.
|
|
|
1.
|
Campground Fees |  | |
a. | mean and MAD;
mean: 16.9
MAD: 2.4 | c. | median and IQR:
median:
18
IQR: 5 | b. | mean and MAD;
mean: 16.9
MAD: 5 | d. | median and IQR:
median: 0
IQR:
15 |
|
|
|
2.
|
Monthly Precipitation |  | |
a. | mean and MAD;
mean: 3
MAD: 0.9 | c. | mean and MAD;
mean: 3
MAD:
0.4 | b. | median and IQR:
median: 3
IQR: 2 | d. | median and IQR:
median: 1
IQR:
0.9 |
|
|
|
3.
|
Describe the shape of the distribution. Distance
Run |  | |
a. | skewed left | c. | even distribution | b. | skewed right | d. | symmetric |
|
Short Answer
|
|
|
Make a stem-and-leaf plot of the data.
|
|
|
1.
|
Points Scored | 106 | 104 | 78 | 95 | 99 | 119 | 79 | 98 | 93 | 108 | 111 | 115 | | | | |
|
|
|
2.
|
Richter Magnitudes | 4.8 | 5.8 | 5.6 | 5.2 | 6.2 | 8.5 | 7.6 | 4.2 | 8.8 | 8.1 | 8.5 | 8.3 | | | | |
|
|
|
Display the data in a histogram.
|
|
|
3.
|
Hair
Length | Inches | Frequency | 0-2 | 8 | 3-5 | 7 | 6-8 | 3 | 9-11 | 7 | 12-14 | 9 | | |
|
|
|
4.
|
Playoff Base Hits | Hits | Frequency | 6-8 | 12 | 9-11 | 13 | 12-14 | 9 | 15-17 | 10 | | |
|
|
|
Make a box-and-whisker plot for the data.
|
|
|
5.
|
Distance (in miles) to the nearest town: 6, 19, 14, 19, 14, 12, 12, 30
|
|
|
6.
|
The double box-and-whisker plot compares the battery life (in hours) of two
brands of laptops. a. What is the range of the upper 75% of each
brand? b. Which brand has a longer battery life? Explain.   Battery Life
(hours)
|
Other
|
|
|
1.
|
Extended Response The stem-and-leaf plot shows the cost of 12 video
games. | Cost of Video
Games | Stem | Leaf | 1 | 3 | 2 | | 3 | 1 | 4 | 1 7 | 5 | 1 3 5 7 7 9 | 6 | 1 9 | | | Key: 4|0 = $40 | | |
a.
How many video games cost more than $52?
b.
Find the mean, median, and range of the data.
c. Describe the distribution
of the data.
d. Which data value is the outlier? Describe how the outlier
affects the mean.
|