Find the missing angle

It’s 100
because to find missing angles you add together the known angles then subtract that from 180
69+11 = 80
180- 80 = 100

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.

We need the pictures of the graphs