If x/4-y/6=1/6 and y/z=1/2 what is the value of 3x-z?

please ask if u don't understand my handwriting lol

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.