# Question: In a national survey conducted by the Centers for Disease

In a national survey conducted by the Centers for Disease Control to determine health-risk behaviors among college students, college students were asked, “How often do you wear a seat belt when riding in a car driven by someone else?” The frequencies were as follows:

Response ...... Frequency

Never ......... 125

Rarely ......... 324

Sometimes ....... 552

Most of the time .... 1257

Always ......... 2518

(a) Construct a relative frequency distribution.

(b) What percentage of respondents answered “Always”?

(c) What percentage of respondents answered “Never” or “Rarely”?

(d) Construct a frequency bar graph.

(e) Construct a relative frequency bar graph.

(f ) Construct a pie chart.

(g) Suppose that a representative from the Centers for Disease Control says, “52.7% of all college students always wear a seat belt.” Is this a descriptive or inferential statement?

Response ...... Frequency

Never ......... 125

Rarely ......... 324

Sometimes ....... 552

Most of the time .... 1257

Always ......... 2518

(a) Construct a relative frequency distribution.

(b) What percentage of respondents answered “Always”?

(c) What percentage of respondents answered “Never” or “Rarely”?

(d) Construct a frequency bar graph.

(e) Construct a relative frequency bar graph.

(f ) Construct a pie chart.

(g) Suppose that a representative from the Centers for Disease Control says, “52.7% of all college students always wear a seat belt.” Is this a descriptive or inferential statement?

**View Solution:**## Answer to relevant Questions

In a national survey conducted by the Centers for Disease Control to determine health-risk behaviors among college students, college students were asked, “How often do you wear a seat belt when driving a car?” The ...A survey of adult men and women asked, “Which one of the following jobs would you most like to have?” The results of the survey are shown in the table. (a) Construct a relative frequency distribution for men and ...The following table lists the presidents of the United States (as of October 2010) and their state of birth. (a) Construct a frequency bar graph for state of birth. (b) Which state has yielded the most presidents? (c) ...For each variable presented, state whether you would expect a histogram of the data to be bell-shaped, uniform, skewed left, or skewed right. Justify your reasoning. (a) Annual household incomes in the United States (b) ...Legend: 24|0 represents 240 Determine the original set of data.Post your question