Every 2/3 hour, harris can sew 1/6 pair of jeans.

what is harris's rate in pairs of jeans per hour?

 Let r equal to the rate in pairs of jean per hour
J equal tp number of jeans
T equal to time  
R = j/t
Since every Every 2/3 hour, Harris can sew 1/6 pair of jeans.  
R = ( 1/ 6 jeans) / ( 2/3 hr)
R = ¼  jean per hour is harris’ rate

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.

The answer is -pie over 2