have a sibling          only childhave chores                        7                                9do not have chores          8                                6fiona interviewed her 30 classmates on whether or not they have a sibling and if they have assigned chores at home. she displayed her results in the table shown. which statement is true? a)more than half of her classmates are only children. b)half of her classmates have a sibling, and half do not. c)more only children do not have chores than those with a sibling. d)fewer classmates have chores than don't have chore