Researchers watched groups of dolphins off the coast of Ireland in 1998 to determine what activities the dolphins partake in at certain times of the day ("Activities of dolphin," 2013).The numbers in table below represent the number of groups of dolphins that were partaking in an activity at certain times of days:

Table: Dolphin Activity

Period Row Activity Morning Noon Afternoon Evening Total Travel 6 6 14 13 39 Feed 28 4 O 56 88 Social 38 5 9 10 62 Column 72 15 23 79 189 Total