The table shows the daily low temperatures for Cleveland, Ohio, over five days. Which expression can be used to find the average daily low
temperature during the five days? *

The answer is A because you need to use the brackets

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.