Final answer:
The average of thresholds on an audiogram at 500, 1000, and 2000 Hz is found by adding the decibel levels at these frequencies and dividing by three. This calculation is part of assessing hearing capability and identifying potential hearing loss.
Step-by-step explanation:
To calculate the average of thresholds on an audiogram at 500, 1000, and 2000 Hz, you would take the measured threshold in decibels (dB) for each of these frequencies and add them together, then divide by three. An audiogram is a graph that shows the threshold of hearing in decibels versus various frequencies, typically ranging from 250 to 8000 Hz. It is used to measure hearing capability and identify hearing loss, where normal hearing is characterized by a threshold of 0 dB across all frequencies.
To find the average threshold, assume you have the threshold levels at 500 Hz, 1000 Hz, and 2000 Hz. If the levels are 10 dB, 15 dB, and 5 dB respectively, you would perform the following calculation: (10 + 15 + 5) / 3 = 30 / 3 = 10 dB. Thus, the average threshold for these three frequencies would be 10 dB. This average can help to determine the degree of hearing loss and inform the individual's hearing health.