Which of these is an example of a non-random sample?
a.
a cereal company surveys their employees about breakfast food preference.

b.
a farmer is choosing grains of wheat from a field to test for a new flavor of cereal.

c.
ten college students at a college, population 50,000, are chosen to taste test a new cereal.

d.
a cereal company puts a winning ticket in one box of cereal out of 100,000 boxes.

Graph the linear function using the slooe and y intercept

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.

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?