Without using parentheses, write an expression equivalent to
x^2(x + 1) + x + 1

It is 7 because it is the absolute value

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.