Janalyn Cooper's gross weekly pay is $798. Her earnings to date for the year total $11,970. What amount is deducted from her pay this week for Social Security, which is taxed at 6.2%? What amount is deducted
for Medicare, which is taxed at 1.45%

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.

Iwould say always for the both of them