Use the table to answer the question.
Hiking: 45 mountains, 20 seaside, 12 island.
Swimming: 12 mountains, 53 seaside, 40 island.
Given the data in the table, what is the relative frequency that people who prefer island vacations also prefer swimming? Round the percentage to the nearest tenth.
Relative frequency = (Number of people who prefer island vacation and swimming) / (Total number of people who prefer island vacation)
Number of people who prefer island vacation and swimming = 40
Total number of people who prefer island vacation = 12 + 53 + 40 = 105
Relative frequency = 40 / 105 = 0.381 (rounded to three decimal places)
Converting to percentage: 0.381 * 100 = 38.1%
Therefore, the relative frequency that people who prefer island vacations also prefer swimming is 38.1%.