Help mee asappp pls​

Multiply the area of a circle by 180/360 because you are finding the area of half a circle. if the angle of a full circle is 360, half a circle is 180

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.