A scientist wants to study the effects of a new Drug X on ca…

A scientist wants to study the effects of a new Drug X on cancer cell growth. Equal numbers of cancerous liver cells are grown on ten plates in a lab.  Drug X is added to five plates.  Water is added to the other five plates.  The ten plates of cancerous cells are incubated at 37 Celsius for two days.  After two days the plates are removed from the incubator and the number of cells is counted on each plate.   What is the dependent variable? 

John loves coffee. John will drive ten miles out of his way…

John loves coffee. John will drive ten miles out of his way in the morning to get a cup of coffee at his favorite coffee shop so he can drink it on the way to work. For two years John has begged the owner of the coffee shop to open one in the shopping center near his home so he and others in his community can enjoy the delightful aroma, titillating taste, and velvety smoothness of their coffee creations. What utility is John seeking?