Chris claims that for any given values of x, the gradient of the curve y=2x^3 + 6x ^2 - 12x +3 is always greater than the gradient of the curve y=1 + 60x - 6x^2 ". show that chris is wrong by finding all the values of x for which his claim is 'not' true.

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.