A study by the National Park Service revealed that 46% of vacationers going to the Rocky Mountain region visit Banff National Park, 34% visit Yoho National, and 16% visit both. a. What is the probability a vacationer will visit at least one of these parks? (Round the final answer to 2 decimal places.) Probability b. What is the probability 0.16 called? c. Are the events mutually exclusive?.