Carolina is twice as old as raul. ginny is the oldest and is three times raul’s age plus four. their ages add up to be 52. how old will ginny be on her next birthday?

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.