Graphical representations for the frequency of numerical data values include histograms and box plots. Histograms are preferred to determine the underlying probability distribution of a data set. Contrarily, box plots are more helpful when comparing various data sets. Histograms provide a clear understanding of how a variable is distributed. Box plots try to achieve the same goal, but they don't give a clear enough image of the distribution of this variable. Box plots are better at comparing various data sets than histograms, even though histograms are better at identifying the underlying distribution of the data. This is because box plots are less detailed and take up less space.