A: 28, 23,30, 25, 27 B: 22, 19, 15, 17, 20

The difference between the mean of the numbers in list A and the average of the numbers in list B is?

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels