    ‘Sentence. 1:.On average: fhe sfudenjs ‘Suffered--at  least one of the “13 symptoms. between. three’ and  11 fimes in the-last year.    Sentence 2: Based on having: af least one of these  sympjoms ° ;- most. .sfudenfs were” hung * over:  bejween three and ‘11: times'in the pasf year .