A sample of 21 participants took part in a hearing experiment. Among other things, the absolute hearing threshold (in decibels) was measured for each participant. The 21 measurements were as follows:...

Extracted text: A sample of 21 participants took part in a hearing experiment. Among other things, the absolute hearing threshold (in decibels) was measured for each participant. The 21 measurements were as follows: 25, 22, 18, 35, 37, 34, 31, 27, 24, 21, 18, 39, 36, 20, 20, 20, 17, 17, 17, 32, 32 Send data to calculator Draw the frequency polygon for these data using an initial class boundary of 16.5 and a class width of 5. Note that you can add or remove classes from the igure. Label each class with its midpoint. Frequency 10 9 8 7 4 3 Absolute hearing threshold (in decibels)