The vertex of this parabola is at (-2, -3). when the x value is -1 and the y value is -5. what is the coefficient of the squared expression in the parabola's equation

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.