An order of award presentation has been devised for seven people: jeff, karen, lyle, maria, norm, olivia, and paul. a) in how many ways can the people be presented? is that just 7! ? and b) in how many ways can the first award be presented to karen and the last to lyle?

A)
Yes, it's

b)
Karen and Lyle have fixed positions, so

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.