A poll asked respondents if they had taken a vacation in the last year. The respondents were separated into two groups: those who had graduated from college and those who had not. Numbers are based on a sample size of 250 in each group. Complete parts (a) and (b) below. Took a Vacation Yes No Total E1 College Graduate 195 55 250 Not a College Graduate 111 139 250 Total 306 194 500 a. If a person is randomly selected from this group, nd the probability for parts (i) through (iii). i. the person is a college graduate 50 % (Type an integer or decimal rounded to one decimal place as needed.) ii. the person took a vacation Dex. (Type an integer or decimal rounded to one decimal place as needed.)