- SPINAL CORD INJURIES Refer to the circle
graph below.[Section 7.1]
a. What percent of spinal cord injuries are caused by
sports accidents?
b. If there are approximately 12,000 new cases of
spinal cord injury each year, according to the
graph, how many of them were caused by motor
vehicle crashes?
- AVALANCHES The bar graph in the next column
shows the number of deaths from avalanches in the
United States for the winter seasons ending in the years
2000 to 2009. Use the graph to answer the following
questions.[Section 7.1]
a. In which year were there the most deaths from
avalanches? How many deaths were there?
Causes of Spinal Cord Injury in the United States
Vehicle crashes,
42%
Falls, 27%
Violence, 15%
Sports, ?%
Other/unknown,
9%
Source: National Spinal Cord Injury Statistical Center
b. Between what two years was there the greatest
increase in the number of deaths from avalanches?
What was the increase?
c. Between what two years was there the greatest
decrease in the number of deaths from avalanches?
What was the decrease?
- TEAM GPA The grade point averages of the
players on a badminton team are listed below. Find
the mean, median, and mode of the team’s GPAs.
[Section 7.2]
3.04 4.00 2.75 3.23 3.87 2.21
3.02 2.25 2.98 2.56 3.58 2.75
5
10
15
20
25
30
35
40
2000 2001 2002 2003 2004
Year
2005 2006 2007 2008 2009
Source: Northwest Weather and Avalanche Center
U.S. Annual Avalanche Deaths
Chapter 7 Cumulative Review Exercises 635
