Help me out on this polynomial
{-5k^{3} - 6k +1 ] +{ -6k^{2} + 5k}

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.