The principal of a high school needs to plan seating for commencement. The following two-way table displays data for the students who are involved in this year's commencement ceremony. Grade level In choir Not in choir TOTAL
Junior 151515 333 181818
Senior 232323 436436436 459459459
Other 333 000 333
TOTAL 414141 439439439 480480480
For these students, are the events "senior" and "not in choir" mutually exclusive?
Choose 1

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.