When the time comes for a group of people eating together at a restaurant to pay their bill, sometimes they might agree to split the costs equally and other times will pay individually. Some researchers conducted an experiment where 40 American college students were randomly assigned to eat in groups of five (two females and three males)Before ordering, half of the groups were told they would be responsible for paying for meals individually (Split" group) and half were told to split the cost equally among the five participants ("Not split" group). The number of items ordered (Items) and cost of each person's order (Cost) in US Dollar was recorded Choose the correct display of the data and its description Split " group