Given that Sn = 1a + (n-1)d1
find the value of Sn if a = 3,n= 10 and
express d in terms of Sn, n and a
2

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.