A market researcher conducts a survey of residents in three neighborhoods. The residents are asked whether they prefer ice cream or gelato. The results, given as joint relative frequencies, are shown in the two-way table. What is the probability that a randomly selected resident of
Arnona will prefer ice cream? Round your answer to the nearest tenth of a percent.
Frogtown Trondale Arnona
Ice Cream
0.31
0.12
0.17
Gelato
0.15
0.16
0.09