Going online for health information. A cyberchondriac is defined as a person who regularly searches the Web for health care information. A recent Harris Poll surveyed 1,010 U.S. adults by telephone and asked each respondent how often (in the past month) he or she looked for health care information online. The results are summarized in the following table. Consider the response category of a randomly selected person who participated in the Harris poll.
Response (# per month) None | Percentage of Respondents 25 |
1 or 2 | 31 |
3-5 | 25 |
6-9 | 5 |
10 or more | 14 |
Total | 100% |
a. List the sample points for the experiment.
b. Assign reasonable probabilities to the sample points.
c. Find the probability that the respondent looks for health care information online more than two times per month.
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