A survey showed that 8% of Internet users age 18 and older report keeping a blog. Referring
Question:
a. Develop a joint probability table for these data with two rows (bloggers vs. non-bloggers) and two columns (young adults vs. older adults).
b. What is the probability that an Internet user is a young adult?
c. What is the probability that an Internet user keeps a blog and is a young adult?
d. Suppose that in a follow-up phone survey we contact someone who is 24 years old.
What is the probability that this person keeps a blog?
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Related Book For
Statistics For Business And Economics
ISBN: 9780538481649
11th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
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