7. MAKING A TWO-WAY TABLE You surveyed 82 students in your grade and found that twenty-three have 2 brothers and twenty-eight have 1 brother.
Nine students are only children, ten have only 1 sister, seven have only
1 brother, six have 2 sisters and 1 brother, twenty-two have 2 sisters,
twenty-seven have no sisters, and eight have 1 sister and 2 brothers.
Make a two-way frequency table of the given information.