Question

A survey by the Health Research Institute at Pricewater-houseCoopers LLP indicated that 80% of “young invincibles” (those aged 18 to 24) are likely to share health information through social media, as compared to 45% of “baby boomers”. Source: Data extracted from “\Social Media ‘Likes’ Healthcare: From Marketing to Social Business,” Health Research Institute, April 2012, p. 8. Suppose that the survey was based on 500 respondents from each of the two groups.
a. Construct a contingency table.
b. Give an example of a simple event and a joint event.
c. What is the probability that a randomly selected respondent is likely to share health information through social media?
d. What is the probability that a randomly selected respondent is likely to share health information through social media and is in the 45- to 64- year- old group?
e. Are the events “age group” and “likely to share health information through social media” independent? Explain.


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  • CreatedJuly 16, 2015
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