The consultant suspiciously eyed the c$-$chart that Chickenverks used to monitor the number of broken eggs in each $100$ egg carton. "You know you really should be using a p$-$chart," the consultant commented with an air of superiority. "What's the difference between a p$-$chart and a c$-$chart in this application?" the long time Chickenverks employee asked with an obvious edge to his voice. "Well," the consultant replied, "the difference is: