"a survey reported that out out 50 teenagers 9 said they get their news from a newspaper at this rate how mant 300 teenagers would get a newspaper"

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.

Here for a good time of free question aha