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)