Suppose a and b are dependent events. if p(a)=0.5 and p(b)=0.6
p(a∩b)?
a.0.5
b.0.6
c.0.3
d.0.1

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.

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