A survey is taken among customers of a fast-food restaurant to determine their preference for hamburger or chicken. Of 200 respondents selected, 75 were children and 125 were adults. 120 preferred hamburger and 80 preferred chicken. 55 of the children preferred hamburger. From this we can conclude that the events 'being an adult' and 'prefers hamburger' exhaust the sample space. the events 'being an adult' and 'prefers hamburger' are dependent. the events 'being an adult' and 'prefers hamburger' are disjoint the events 'being an adult' and 'prefers hamburger' are independent.