t has become more common for shoppers to comparison shop using the Internet Respondents to a survey who owned cell phones were asked whether they had in the past 30 days looked up the price of a product while they were in a store to see if they could get a better price somewhere else The table to the right has their responses by income level Complete parts a through d below Yes No 30K 30K 49 9K 205 110 619 415 a Find the conditional distribution in percentages of income distribution for those who do not compare prices on the Internet 30K 30K 49 9K 50K 74 9K 50K 74 9K 129 252 75K 208 426 Not Comparing