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Table summarized frequency of seatbelt use while driving for twelfth-grade participants in the 2003 Youth Risk Behavior Surveillance System (YRBSS) survey. In 2001, YRBSS survey students were asked the same question. For the 2001 survey, a summary of responses given by 2530 students in the twelfth grade who said that they drive follows.
Wears Seatbelt
Frequency
Never
105
Rarely
248
Sometimes
286
Most times
464
Always
1427
a. What percent of the twelfth-grade students who drive said that they always wear a seatbelt when driving?
b. What percent of the twelfth-grade students who drive said that they do not always wear a seatbelt when they drive?
c. Find the percentage in each of the five response categories.
d. Draw a bar graph of the percentages found in part (c).
Table : Seatbelt Use by Twelfth -Graders When Driving
Response
Count
Percent
1686
55.40%
578
19.00%
414
13.60%
249
8.20%
115
3.80%
Total
3042
100%
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