Table 1 below shows the threshold for hearing in the left ear of three students at the indicated range of frequencies. Draw the pure tone audiogram for the three students on a single graph with the scales as illustrated below. Comment on the reasons for the shape of the graph for student 2 and 3. Frequency in Hertz (Hz) 125 250 500 1000 2000 4000 8000 -10 10 30 70 06 110 Hearing Level in dB

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