Helena asked five drama club members in her homeroom how many tickets they had sold. The mean number of tickets sold was 16.

Then she took ten random samples from the entire drama club of 75 students. The mean number of tickets sold was 22.5.

Compare the means. Is one sample a better representation? Explain why or why not.

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.