Night owl motel rents rooms with 2 beds for $68 per night and rooms with 1 bed for $57 per night. one evening night owl motel rented 27 rooms and made $1,704.
how many rooms with 1 bed did the motel rent out?
how many rooms with 2 beds did the motel rent out?

1 bed room = 12
2 bed room = 15

68 x 15 = 1020
57 x 12 =   684
           
1020 + 684 = $1704 (total made)

15 two-bed room + 12 one-bed room = 27 rooms in all

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.