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Mаny children hаve eаr tubes surgically inserted tо reduce hearing lоss assоciated with persistent ear infection. A common side effect with ear tubes is discharge from the external ear indicating inflammation of the external or middle ear. A clinical trial was conducted among children with prior ear infections comparing efficacy of (i) antibiotic eardrops, (ii) oral antibiotics, and (iii) observation without treatment (control group), referred to below as observation. Children were seen at home by study physicians at 2 weeks. The results are given in the Table below. Group Number of children Number of children with otorrhea at 2 weeks Antibiotic ear drop 76 4 Oral antibiotics 77 34 Observation 75 41 Extract data from the table for the antibiotic ear drops and oral antibiotics group in order to complete the contingency table below. Hint: some values need to be calculated. Observed data: Group Otorrhea 2 weeks = yes Otorrhea 2 weeks = no Total Antibiotic Ear Drops [a] [b] [c] Oral Antibiotic [d] [e] [f] Total [g] [h] [i]