In general, shopping online is supposed to be more convenient than going to stores. However, according to a recent Harris Interactive poll, 87% of people have experienced problems with an online transaction (The Wall Street Journal, October 2, 2007). Forty-two percent of people who experienced a problem abandoned the transaction or switched to a competitors website. Fifty-three percent of people who experienced problems contacted customer-service representatives.

a.	What percentage of people did not experience problems with an online transaction? (Round your answer to 2 decimal places.)

P(Ac)

b.	What percentage of people experienced problems with an online transaction and abandoned the transaction or switched to a competitors website? (Round your answer to 2 decimal places.)

P(A B)

c.	What percentage of people experienced problems with an online transaction and contacted customer-service representatives? (Round your answer to 2 decimal places.)

P(A C)