Ali and jonah collect seashells in identical buckets. when they are finished ali's bucket is 2/6 full and jonah's bucket is 3/6 full. compare the fractions using > , < or =.

The denominator is the same, so just compare the numerator. 3 is greater than 2, so 2/6 <3/6 :)

This makes absolutely no sense at all young man/women

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.